Home / 20,761,343.20-31,142,014.80-19,565,600.95

Finding the Fourth Proportional to 20,761,343.20, 31,142,014.80 and 19,565,600.95

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Solution

The fourth proportional to 20,761,343.20, 31,142,014.80 and 19,565,600.95 is: 29,348,401.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761,343.20 : 31,142,014.80 = 19,565,600.95 : x
  2. Step 2: Convert to fraction form
    20,761,343.20/31,142,014.80 = 19,565,600.95/x
  3. Step 3: Cross multiply
    20,761,343.20x = 31,142,014.80 × 19,565,600.95
  4. Step 4: Simplify right side
    20,761,343.20x = 609,312,234,355,794
  5. Step 5: Solve for x
    x = 609,312,234,355,794/20,761,343.20
  6. Step 6: Final answer
    x = 29,348,401.43

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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.