Home / 21,387,835.40-32,081,753.10-20,632,008.20

Finding the Fourth Proportional to 21,387,835.40, 32,081,753.10 and 20,632,008.20

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Solution

The fourth proportional to 21,387,835.40, 32,081,753.10 and 20,632,008.20 is: 30,948,012.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387,835.40 : 32,081,753.10 = 20,632,008.20 : x
  2. Step 2: Convert to fraction form
    21,387,835.40/32,081,753.10 = 20,632,008.20/x
  3. Step 3: Cross multiply
    21,387,835.40x = 32,081,753.10 × 20,632,008.20
  4. Step 4: Simplify right side
    21,387,835.40x = 661,910,993,029,575.38
  5. Step 5: Solve for x
    x = 661,910,993,029,575.38/21,387,835.40
  6. Step 6: Final answer
    x = 30,948,012.30

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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.