Home / 159,731,702.38-238,967,139.75-120,981,780.46

Finding the Fourth Proportional to 159,731,702.38, 238,967,139.75 and 120,981,780.46

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Solution

The fourth proportional to 159,731,702.38, 238,967,139.75 and 120,981,780.46 is: 180,995,191.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,731,702.38 : 238,967,139.75 = 120,981,780.46 : x
  2. Step 2: Convert to fraction form
    159,731,702.38/238,967,139.75 = 120,981,780.46/x
  3. Step 3: Cross multiply
    159,731,702.38x = 238,967,139.75 × 120,981,780.46
  4. Step 4: Simplify right side
    159,731,702.38x = 28,910,670,038,388,636
  5. Step 5: Solve for x
    x = 28,910,670,038,388,636/159,731,702.38
  6. Step 6: Final answer
    x = 180,995,191.36

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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.