Home / 31,654,470.30-47,481,705.45-18,721,427.10

Finding the Fourth Proportional to 31,654,470.30, 47,481,705.45 and 18,721,427.10

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Solution

The fourth proportional to 31,654,470.30, 47,481,705.45 and 18,721,427.10 is: 28,082,140.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,654,470.30 : 47,481,705.45 = 18,721,427.10 : x
  2. Step 2: Convert to fraction form
    31,654,470.30/47,481,705.45 = 18,721,427.10/x
  3. Step 3: Cross multiply
    31,654,470.30x = 47,481,705.45 × 18,721,427.10
  4. Step 4: Simplify right side
    31,654,470.30x = 888,925,287,165,847.88
  5. Step 5: Solve for x
    x = 888,925,287,165,847.88/31,654,470.30
  6. Step 6: Final answer
    x = 28,082,140.65

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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.