Home / 15,900,789.14-21,940,703.25-8,931,199.22

Finding the Fourth Proportional to 15,900,789.14, 21,940,703.25 and 8,931,199.22

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Solution

The fourth proportional to 15,900,789.14, 21,940,703.25 and 8,931,199.22 is: 12,323,714.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,900,789.14 : 21,940,703.25 = 8,931,199.22 : x
  2. Step 2: Convert to fraction form
    15,900,789.14/21,940,703.25 = 8,931,199.22/x
  3. Step 3: Cross multiply
    15,900,789.14x = 21,940,703.25 × 8,931,199.22
  4. Step 4: Simplify right side
    15,900,789.14x = 195,956,791,752,651.47
  5. Step 5: Solve for x
    x = 195,956,791,752,651.47/15,900,789.14
  6. Step 6: Final answer
    x = 12,323,714.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.