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Finding the Fourth Proportional to 8,532,514.70, 12,798,772.05 and 7,972,642.70

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Solution

The fourth proportional to 8,532,514.70, 12,798,772.05 and 7,972,642.70 is: 11,958,964.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,532,514.70 : 12,798,772.05 = 7,972,642.70 : x
  2. Step 2: Convert to fraction form
    8,532,514.70/12,798,772.05 = 7,972,642.70/x
  3. Step 3: Cross multiply
    8,532,514.70x = 12,798,772.05 × 7,972,642.70
  4. Step 4: Simplify right side
    8,532,514.70x = 102,040,036,553,396.55
  5. Step 5: Solve for x
    x = 102,040,036,553,396.55/8,532,514.70
  6. Step 6: Final answer
    x = 11,958,964.05

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Double scale
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Similar ratio
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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.