Home / 1,229,678,977,853.40-1,697,010,332,025.50-680,970,282,786.45

Finding the Fourth Proportional to 1,229,678,977,853.40, 1,697,010,332,025.50 and 680,970,282,786.45

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Solution

The fourth proportional to 1,229,678,977,853.40, 1,697,010,332,025.50 and 680,970,282,786.45 is: 939,768,530,245.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,678,977,853.40 : 1,697,010,332,025.50 = 680,970,282,786.45 : x
  2. Step 2: Convert to fraction form
    1,229,678,977,853.40/1,697,010,332,025.50 = 680,970,282,786.45/x
  3. Step 3: Cross multiply
    1,229,678,977,853.40x = 1,697,010,332,025.50 × 680,970,282,786.45
  4. Step 4: Simplify right side
    1,229,678,977,853.40x = 1,155,613,605,690,932,069,400,576
  5. Step 5: Solve for x
    x = 1,155,613,605,690,932,069,400,576/1,229,678,977,853.40
  6. Step 6: Final answer
    x = 939,768,530,245.38

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Double scale
Find fourth proportional to 1,229,678,977,854.40, 1,697,010,332,026.88 and 680,970,282,787.45
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.