Home / 12,477,187.20-18,715,780.80-8,367,376.80

Finding the Fourth Proportional to 12,477,187.20, 18,715,780.80 and 8,367,376.80

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Solution

The fourth proportional to 12,477,187.20, 18,715,780.80 and 8,367,376.80 is: 12,551,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477,187.20 : 18,715,780.80 = 8,367,376.80 : x
  2. Step 2: Convert to fraction form
    12,477,187.20/18,715,780.80 = 8,367,376.80/x
  3. Step 3: Cross multiply
    12,477,187.20x = 18,715,780.80 × 8,367,376.80
  4. Step 4: Simplify right side
    12,477,187.20x = 156,601,990,059,805.44
  5. Step 5: Solve for x
    x = 156,601,990,059,805.44/12,477,187.20
  6. Step 6: Final answer
    x = 12,551,065.20

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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.