Home / 90,647,390.43-135,970,915.70-28,403,470.14

Finding the Fourth Proportional to 90,647,390.43, 135,970,915.70 and 28,403,470.14

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Solution

The fourth proportional to 90,647,390.43, 135,970,915.70 and 28,403,470.14 is: 42,605,151.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,647,390.43 : 135,970,915.70 = 28,403,470.14 : x
  2. Step 2: Convert to fraction form
    90,647,390.43/135,970,915.70 = 28,403,470.14/x
  3. Step 3: Cross multiply
    90,647,390.43x = 135,970,915.70 × 28,403,470.14
  4. Step 4: Simplify right side
    90,647,390.43x = 3,862,045,843,851,389.50
  5. Step 5: Solve for x
    x = 3,862,045,843,851,389.50/90,647,390.43
  6. Step 6: Final answer
    x = 42,605,151.96

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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.