Home / 15,580,131.78-21,500,590.97-8,704,613.84

Finding the Fourth Proportional to 15,580,131.78, 21,500,590.97 and 8,704,613.84

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Solution

The fourth proportional to 15,580,131.78, 21,500,590.97 and 8,704,613.84 is: 12,012,372.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,580,131.78 : 21,500,590.97 = 8,704,613.84 : x
  2. Step 2: Convert to fraction form
    15,580,131.78/21,500,590.97 = 8,704,613.84/x
  3. Step 3: Cross multiply
    15,580,131.78x = 21,500,590.97 × 8,704,613.84
  4. Step 4: Simplify right side
    15,580,131.78x = 187,154,341,725,641
  5. Step 5: Solve for x
    x = 187,154,341,725,641/15,580,131.78
  6. Step 6: Final answer
    x = 12,012,372.19

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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.