Home / 64,156,623.20-96,234,934.80-21,015,423.80

Finding the Fourth Proportional to 64,156,623.20, 96,234,934.80 and 21,015,423.80

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Solution

The fourth proportional to 64,156,623.20, 96,234,934.80 and 21,015,423.80 is: 31,523,135.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,156,623.20 : 96,234,934.80 = 21,015,423.80 : x
  2. Step 2: Convert to fraction form
    64,156,623.20/96,234,934.80 = 21,015,423.80/x
  3. Step 3: Cross multiply
    64,156,623.20x = 96,234,934.80 × 21,015,423.80
  4. Step 4: Simplify right side
    64,156,623.20x = 2,022,417,939,187,368.25
  5. Step 5: Solve for x
    x = 2,022,417,939,187,368.25/64,156,623.20
  6. Step 6: Final answer
    x = 31,523,135.70

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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.