Home / 1,229,678,977,857.70-1,697,010,332,031.50-680,970,282,790.70

Finding the Fourth Proportional to 1,229,678,977,857.70, 1,697,010,332,031.50 and 680,970,282,790.70

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Solution

The fourth proportional to 1,229,678,977,857.70, 1,697,010,332,031.50 and 680,970,282,790.70 is: 939,768,530,251.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,678,977,857.70 : 1,697,010,332,031.50 = 680,970,282,790.70 : x
  2. Step 2: Convert to fraction form
    1,229,678,977,857.70/1,697,010,332,031.50 = 680,970,282,790.70/x
  3. Step 3: Cross multiply
    1,229,678,977,857.70x = 1,697,010,332,031.50 × 680,970,282,790.70
  4. Step 4: Simplify right side
    1,229,678,977,857.70x = 1,155,613,605,702,230,115,090,432
  5. Step 5: Solve for x
    x = 1,155,613,605,702,230,115,090,432/1,229,678,977,857.70
  6. Step 6: Final answer
    x = 939,768,530,251.28

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Double scale
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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.