Home / 28,098,992.20-42,179,981.10-21,737,446.60

Finding the Fourth Proportional to 28,098,992.20, 42,179,981.10 and 21,737,446.60

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Solution

The fourth proportional to 28,098,992.20, 42,179,981.10 and 21,737,446.60 is: 32,630,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,098,992.20 : 42,179,981.10 = 21,737,446.60 : x
  2. Step 2: Convert to fraction form
    28,098,992.20/42,179,981.10 = 21,737,446.60/x
  3. Step 3: Cross multiply
    28,098,992.20x = 42,179,981.10 × 21,737,446.60
  4. Step 4: Simplify right side
    28,098,992.20x = 916,885,086,750,259.38
  5. Step 5: Solve for x
    x = 916,885,086,750,259.38/28,098,992.20
  6. Step 6: Final answer
    x = 32,630,532.80

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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.