Home / 91,279,915.28-136,964,159.76-40,155,291.20

Finding the Fourth Proportional to 91,279,915.28, 136,964,159.76 and 40,155,291.20

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Solution

The fourth proportional to 91,279,915.28, 136,964,159.76 and 40,155,291.20 is: 60,252,419.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,279,915.28 : 136,964,159.76 = 40,155,291.20 : x
  2. Step 2: Convert to fraction form
    91,279,915.28/136,964,159.76 = 40,155,291.20/x
  3. Step 3: Cross multiply
    91,279,915.28x = 136,964,159.76 × 40,155,291.20
  4. Step 4: Simplify right side
    91,279,915.28x = 5,499,835,719,126,122
  5. Step 5: Solve for x
    x = 5,499,835,719,126,122/91,279,915.28
  6. Step 6: Final answer
    x = 60,252,419.19

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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.