Home / 12,482,186.20-18,723,279.30-8,230,658.20

Finding the Fourth Proportional to 12,482,186.20, 18,723,279.30 and 8,230,658.20

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Solution

The fourth proportional to 12,482,186.20, 18,723,279.30 and 8,230,658.20 is: 12,345,987.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,186.20 : 18,723,279.30 = 8,230,658.20 : x
  2. Step 2: Convert to fraction form
    12,482,186.20/18,723,279.30 = 8,230,658.20/x
  3. Step 3: Cross multiply
    12,482,186.20x = 18,723,279.30 × 8,230,658.20
  4. Step 4: Simplify right side
    12,482,186.20x = 154,104,912,301,435.28
  5. Step 5: Solve for x
    x = 154,104,912,301,435.28/12,482,186.20
  6. Step 6: Final answer
    x = 12,345,987.30

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Double scale
Find fourth proportional to 12,482,187.20, 18,723,280.80 and 8,230,659.20
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.