Home / 66,428,107.20-99,684,151.20-39,134,347.20

Finding the Fourth Proportional to 66,428,107.20, 99,684,151.20 and 39,134,347.20

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Solution

The fourth proportional to 66,428,107.20, 99,684,151.20 and 39,134,347.20 is: 58,726,258.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,107.20 : 99,684,151.20 = 39,134,347.20 : x
  2. Step 2: Convert to fraction form
    66,428,107.20/99,684,151.20 = 39,134,347.20/x
  3. Step 3: Cross multiply
    66,428,107.20x = 99,684,151.20 × 39,134,347.20
  4. Step 4: Simplify right side
    66,428,107.20x = 3,901,074,183,398,097
  5. Step 5: Solve for x
    x = 3,901,074,183,398,097/66,428,107.20
  6. Step 6: Final answer
    x = 58,726,258.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.