Home / 13,287,116.91-18,336,221.19-7,175,545.41

Finding the Fourth Proportional to 13,287,116.91, 18,336,221.19 and 7,175,545.41

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Solution

The fourth proportional to 13,287,116.91, 18,336,221.19 and 7,175,545.41 is: 9,902,252.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287,116.91 : 18,336,221.19 = 7,175,545.41 : x
  2. Step 2: Convert to fraction form
    13,287,116.91/18,336,221.19 = 7,175,545.41/x
  3. Step 3: Cross multiply
    13,287,116.91x = 18,336,221.19 × 7,175,545.41
  4. Step 4: Simplify right side
    13,287,116.91x = 131,572,387,760,771.50
  5. Step 5: Solve for x
    x = 131,572,387,760,771.50/13,287,116.91
  6. Step 6: Final answer
    x = 9,902,252.58

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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.