Home / 156,635,126.16-216,143,819.86-90,559,882.56

Finding the Fourth Proportional to 156,635,126.16, 216,143,819.86 and 90,559,882.56

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Solution

The fourth proportional to 156,635,126.16, 216,143,819.86 and 90,559,882.56 is: 124,965,321.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,635,126.16 : 216,143,819.86 = 90,559,882.56 : x
  2. Step 2: Convert to fraction form
    156,635,126.16/216,143,819.86 = 90,559,882.56/x
  3. Step 3: Cross multiply
    156,635,126.16x = 216,143,819.86 × 90,559,882.56
  4. Step 4: Simplify right side
    156,635,126.16x = 19,573,958,942,591,396
  5. Step 5: Solve for x
    x = 19,573,958,942,591,396/156,635,126.16
  6. Step 6: Final answer
    x = 124,965,321.78

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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.