Home / 12,545,138.20-18,789,713.70-9,696,011.80

Finding the Fourth Proportional to 12,545,138.20, 18,789,713.70 and 9,696,011.80

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Solution

The fourth proportional to 12,545,138.20, 18,789,713.70 and 9,696,011.80 is: 14,522,381.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545,138.20 : 18,789,713.70 = 9,696,011.80 : x
  2. Step 2: Convert to fraction form
    12,545,138.20/18,789,713.70 = 9,696,011.80/x
  3. Step 3: Cross multiply
    12,545,138.20x = 18,789,713.70 × 9,696,011.80
  4. Step 4: Simplify right side
    12,545,138.20x = 182,185,285,753,821.66
  5. Step 5: Solve for x
    x = 182,185,285,753,821.66/12,545,138.20
  6. Step 6: Final answer
    x = 14,522,381.73

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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.