Home / 138,612,931.52-191,288,110.70-75,887,983.04

Finding the Fourth Proportional to 138,612,931.52, 191,288,110.70 and 75,887,983.04

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Solution

The fourth proportional to 138,612,931.52, 191,288,110.70 and 75,887,983.04 is: 104,726,656.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,612,931.52 : 191,288,110.70 = 75,887,983.04 : x
  2. Step 2: Convert to fraction form
    138,612,931.52/191,288,110.70 = 75,887,983.04/x
  3. Step 3: Cross multiply
    138,612,931.52x = 191,288,110.70 × 75,887,983.04
  4. Step 4: Simplify right side
    138,612,931.52x = 14,516,468,900,175,804
  5. Step 5: Solve for x
    x = 14,516,468,900,175,804/138,612,931.52
  6. Step 6: Final answer
    x = 104,726,656.75

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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.