Home / 12,514,664.20-18,771,996.30-5,326,432.60

Finding the Fourth Proportional to 12,514,664.20, 18,771,996.30 and 5,326,432.60

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Solution

The fourth proportional to 12,514,664.20, 18,771,996.30 and 5,326,432.60 is: 7,989,648.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,514,664.20 : 18,771,996.30 = 5,326,432.60 : x
  2. Step 2: Convert to fraction form
    12,514,664.20/18,771,996.30 = 5,326,432.60/x
  3. Step 3: Cross multiply
    12,514,664.20x = 18,771,996.30 × 5,326,432.60
  4. Step 4: Simplify right side
    12,514,664.20x = 99,987,773,059,399.38
  5. Step 5: Solve for x
    x = 99,987,773,059,399.38/12,514,664.20
  6. Step 6: Final answer
    x = 7,989,648.90

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.