Home / 20,854,086.60-31,281,129.90-12,344,032.20

Finding the Fourth Proportional to 20,854,086.60, 31,281,129.90 and 12,344,032.20

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Solution

The fourth proportional to 20,854,086.60, 31,281,129.90 and 12,344,032.20 is: 18,516,048.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,854,086.60 : 31,281,129.90 = 12,344,032.20 : x
  2. Step 2: Convert to fraction form
    20,854,086.60/31,281,129.90 = 12,344,032.20/x
  3. Step 3: Cross multiply
    20,854,086.60x = 31,281,129.90 × 12,344,032.20
  4. Step 4: Simplify right side
    20,854,086.60x = 386,135,274,737,982.75
  5. Step 5: Solve for x
    x = 386,135,274,737,982.75/20,854,086.60
  6. Step 6: Final answer
    x = 18,516,048.30

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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.