Home / 64,156,630.70-96,234,946.05-21,015,431.30

Finding the Fourth Proportional to 64,156,630.70, 96,234,946.05 and 21,015,431.30

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Solution

The fourth proportional to 64,156,630.70, 96,234,946.05 and 21,015,431.30 is: 31,523,146.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,156,630.70 : 96,234,946.05 = 21,015,431.30 : x
  2. Step 2: Convert to fraction form
    64,156,630.70/96,234,946.05 = 21,015,431.30/x
  3. Step 3: Cross multiply
    64,156,630.70x = 96,234,946.05 × 21,015,431.30
  4. Step 4: Simplify right side
    64,156,630.70x = 2,022,418,897,372,981.25
  5. Step 5: Solve for x
    x = 2,022,418,897,372,981.25/64,156,630.70
  6. Step 6: Final answer
    x = 31,523,146.95

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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.