Home / 22,609,211.76-31,200,044.04-12,820,549.68

Finding the Fourth Proportional to 22,609,211.76, 31,200,044.04 and 12,820,549.68

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Solution

The fourth proportional to 22,609,211.76, 31,200,044.04 and 12,820,549.68 is: 17,691,979.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,609,211.76 : 31,200,044.04 = 12,820,549.68 : x
  2. Step 2: Convert to fraction form
    22,609,211.76/31,200,044.04 = 12,820,549.68/x
  3. Step 3: Cross multiply
    22,609,211.76x = 31,200,044.04 × 12,820,549.68
  4. Step 4: Simplify right side
    22,609,211.76x = 400,001,714,633,007.88
  5. Step 5: Solve for x
    x = 400,001,714,633,007.88/22,609,211.76
  6. Step 6: Final answer
    x = 17,691,979.66

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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.