Home / 20,981,998.60-31,474,034.70-10,904,302.60

Finding the Fourth Proportional to 20,981,998.60, 31,474,034.70 and 10,904,302.60

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Solution

The fourth proportional to 20,981,998.60, 31,474,034.70 and 10,904,302.60 is: 16,356,992.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,981,998.60 : 31,474,034.70 = 10,904,302.60 : x
  2. Step 2: Convert to fraction form
    20,981,998.60/31,474,034.70 = 10,904,302.60/x
  3. Step 3: Cross multiply
    20,981,998.60x = 31,474,034.70 × 10,904,302.60
  4. Step 4: Simplify right side
    20,981,998.60x = 343,202,398,411,700.19
  5. Step 5: Solve for x
    x = 343,202,398,411,700.19/20,981,998.60
  6. Step 6: Final answer
    x = 16,356,992.72

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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.