Home / 156,039,760.74-215,338,349.28-89,057,375.28

Finding the Fourth Proportional to 156,039,760.74, 215,338,349.28 and 89,057,375.28

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Solution

The fourth proportional to 156,039,760.74, 215,338,349.28 and 89,057,375.28 is: 122,901,163.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,039,760.74 : 215,338,349.28 = 89,057,375.28 : x
  2. Step 2: Convert to fraction form
    156,039,760.74/215,338,349.28 = 89,057,375.28/x
  3. Step 3: Cross multiply
    156,039,760.74x = 215,338,349.28 × 89,057,375.28
  4. Step 4: Simplify right side
    156,039,760.74x = 19,177,468,184,004,680
  5. Step 5: Solve for x
    x = 19,177,468,184,004,680/156,039,760.74
  6. Step 6: Final answer
    x = 122,901,163.74

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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.