Home / 8,424,186.30-12,636,279.45-4,172,658.30

Finding the Fourth Proportional to 8,424,186.30, 12,636,279.45 and 4,172,658.30

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Solution

The fourth proportional to 8,424,186.30, 12,636,279.45 and 4,172,658.30 is: 6,258,987.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,424,186.30 : 12,636,279.45 = 4,172,658.30 : x
  2. Step 2: Convert to fraction form
    8,424,186.30/12,636,279.45 = 4,172,658.30/x
  3. Step 3: Cross multiply
    8,424,186.30x = 12,636,279.45 × 4,172,658.30
  4. Step 4: Simplify right side
    8,424,186.30x = 52,726,876,328,161.93
  5. Step 5: Solve for x
    x = 52,726,876,328,161.93/8,424,186.30
  6. Step 6: Final answer
    x = 6,258,987.45

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Double scale
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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.