Home / 20,761,353.20-31,142,029.80-19,565,610.96

Finding the Fourth Proportional to 20,761,353.20, 31,142,029.80 and 19,565,610.96

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Solution

The fourth proportional to 20,761,353.20, 31,142,029.80 and 19,565,610.96 is: 29,348,416.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,761,353.20 : 31,142,029.80 = 19,565,610.96 : x
  2. Step 2: Convert to fraction form
    20,761,353.20/31,142,029.80 = 19,565,610.96/x
  3. Step 3: Cross multiply
    20,761,353.20x = 31,142,029.80 × 19,565,610.96
  4. Step 4: Simplify right side
    20,761,353.20x = 609,312,839,571,526.62
  5. Step 5: Solve for x
    x = 609,312,839,571,526.62/20,761,353.20
  6. Step 6: Final answer
    x = 29,348,416.44

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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.