Home / 129,825,881.22-194,429,688-75,123,182.87

Finding the Fourth Proportional to 129,825,881.22, 194,429,688 and 75,123,182.87

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Solution

The fourth proportional to 129,825,881.22, 194,429,688 and 75,123,182.87 is: 112,505,895.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,825,881.22 : 194,429,688 = 75,123,182.87 : x
  2. Step 2: Convert to fraction form
    129,825,881.22/194,429,688 = 75,123,182.87/x
  3. Step 3: Cross multiply
    129,825,881.22x = 194,429,688 × 75,123,182.87
  4. Step 4: Simplify right side
    129,825,881.22x = 14,606,177,006,008,896
  5. Step 5: Solve for x
    x = 14,606,177,006,008,896/129,825,881.22
  6. Step 6: Final answer
    x = 112,505,895.35

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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.