Home / 20,717,819.69-28,596,105.14-12,238,387.94

Finding the Fourth Proportional to 20,717,819.69, 28,596,105.14 and 12,238,387.94

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Solution

The fourth proportional to 20,717,819.69, 28,596,105.14 and 12,238,387.94 is: 16,892,232.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717,819.69 : 28,596,105.14 = 12,238,387.94 : x
  2. Step 2: Convert to fraction form
    20,717,819.69/28,596,105.14 = 12,238,387.94/x
  3. Step 3: Cross multiply
    20,717,819.69x = 28,596,105.14 × 12,238,387.94
  4. Step 4: Simplify right side
    20,717,819.69x = 349,970,228,286,646.38
  5. Step 5: Solve for x
    x = 349,970,228,286,646.38/20,717,819.69
  6. Step 6: Final answer
    x = 16,892,232.56

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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.