Home / 20,717,819.92-28,596,105.48-12,238,388.08

Finding the Fourth Proportional to 20,717,819.92, 28,596,105.48 and 12,238,388.08

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Solution

The fourth proportional to 20,717,819.92, 28,596,105.48 and 12,238,388.08 is: 16,892,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717,819.92 : 28,596,105.48 = 12,238,388.08 : x
  2. Step 2: Convert to fraction form
    20,717,819.92/28,596,105.48 = 12,238,388.08/x
  3. Step 3: Cross multiply
    20,717,819.92x = 28,596,105.48 × 12,238,388.08
  4. Step 4: Simplify right side
    20,717,819.92x = 349,970,236,440,854.69
  5. Step 5: Solve for x
    x = 349,970,236,440,854.69/20,717,819.92
  6. Step 6: Final answer
    x = 16,892,232.76

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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.