Home / 21,398,761.04-29,530,290.30-12,231,600.62

Finding the Fourth Proportional to 21,398,761.04, 29,530,290.30 and 12,231,600.62

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Solution

The fourth proportional to 21,398,761.04, 29,530,290.30 and 12,231,600.62 is: 16,879,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398,761.04 : 29,530,290.30 = 12,231,600.62 : x
  2. Step 2: Convert to fraction form
    21,398,761.04/29,530,290.30 = 12,231,600.62/x
  3. Step 3: Cross multiply
    21,398,761.04x = 29,530,290.30 × 12,231,600.62
  4. Step 4: Simplify right side
    21,398,761.04x = 361,202,717,142,260
  5. Step 5: Solve for x
    x = 361,202,717,142,260/21,398,761.04
  6. Step 6: Final answer
    x = 16,879,608.89

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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.