Home / 12,251,279.80-18,376,919.70-9,381,498.40

Finding the Fourth Proportional to 12,251,279.80, 18,376,919.70 and 9,381,498.40

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Solution

The fourth proportional to 12,251,279.80, 18,376,919.70 and 9,381,498.40 is: 14,072,247.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,251,279.80 : 18,376,919.70 = 9,381,498.40 : x
  2. Step 2: Convert to fraction form
    12,251,279.80/18,376,919.70 = 9,381,498.40/x
  3. Step 3: Cross multiply
    12,251,279.80x = 18,376,919.70 × 9,381,498.40
  4. Step 4: Simplify right side
    12,251,279.80x = 172,403,042,762,478.47
  5. Step 5: Solve for x
    x = 172,403,042,762,478.47/12,251,279.80
  6. Step 6: Final answer
    x = 14,072,247.60

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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.