Home / 1,229,678,978,073.40-1,697,010,332,329.40-680,970,283,006.50

Finding the Fourth Proportional to 1,229,678,978,073.40, 1,697,010,332,329.40 and 680,970,283,006.50

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Solution

The fourth proportional to 1,229,678,978,073.40, 1,697,010,332,329.40 and 680,970,283,006.50 is: 939,768,530,549.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,678,978,073.40 : 1,697,010,332,329.40 = 680,970,283,006.50 : x
  2. Step 2: Convert to fraction form
    1,229,678,978,073.40/1,697,010,332,329.40 = 680,970,283,006.50/x
  3. Step 3: Cross multiply
    1,229,678,978,073.40x = 1,697,010,332,329.40 × 680,970,283,006.50
  4. Step 4: Simplify right side
    1,229,678,978,073.40x = 1,155,613,606,271,306,034,053,120
  5. Step 5: Solve for x
    x = 1,155,613,606,271,306,034,053,120/1,229,678,978,073.40
  6. Step 6: Final answer
    x = 939,768,530,549.22

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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.