Home / 57,087,279.78-78,780,726.51-30,981,827.58

Finding the Fourth Proportional to 57,087,279.78, 78,780,726.51 and 30,981,827.58

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Solution

The fourth proportional to 57,087,279.78, 78,780,726.51 and 30,981,827.58 is: 42,755,074.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,087,279.78 : 78,780,726.51 = 30,981,827.58 : x
  2. Step 2: Convert to fraction form
    57,087,279.78/78,780,726.51 = 30,981,827.58/x
  3. Step 3: Cross multiply
    57,087,279.78x = 78,780,726.51 × 30,981,827.58
  4. Step 4: Simplify right side
    57,087,279.78x = 2,440,770,885,359,955
  5. Step 5: Solve for x
    x = 2,440,770,885,359,955/57,087,279.78
  6. Step 6: Final answer
    x = 42,755,074.24

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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.