Home / 20,776,521.30-31,165,316.55-9,844,145.70

Finding the Fourth Proportional to 20,776,521.30, 31,165,316.55 and 9,844,145.70

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Solution

The fourth proportional to 20,776,521.30, 31,165,316.55 and 9,844,145.70 is: 14,766,471.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,521.30 : 31,165,316.55 = 9,844,145.70 : x
  2. Step 2: Convert to fraction form
    20,776,521.30/31,165,316.55 = 9,844,145.70/x
  3. Step 3: Cross multiply
    20,776,521.30x = 31,165,316.55 × 9,844,145.70
  4. Step 4: Simplify right side
    20,776,521.30x = 306,795,916,904,821.31
  5. Step 5: Solve for x
    x = 306,795,916,904,821.31/20,776,521.30
  6. Step 6: Final answer
    x = 14,766,471.85

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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.