Home / 57,087,276.27-78,780,721.68-30,981,824.08

Finding the Fourth Proportional to 57,087,276.27, 78,780,721.68 and 30,981,824.08

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Solution

The fourth proportional to 57,087,276.27, 78,780,721.68 and 30,981,824.08 is: 42,755,069.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,087,276.27 : 78,780,721.68 = 30,981,824.08 : x
  2. Step 2: Convert to fraction form
    57,087,276.27/78,780,721.68 = 30,981,824.08/x
  3. Step 3: Cross multiply
    57,087,276.27x = 78,780,721.68 × 30,981,824.08
  4. Step 4: Simplify right side
    57,087,276.27x = 2,440,770,459,985,202
  5. Step 5: Solve for x
    x = 2,440,770,459,985,202/57,087,276.27
  6. Step 6: Final answer
    x = 42,755,069.42

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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.