Home / 12,061,342.80-18,092,014.20-8,660,120.40

Finding the Fourth Proportional to 12,061,342.80, 18,092,014.20 and 8,660,120.40

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Solution

The fourth proportional to 12,061,342.80, 18,092,014.20 and 8,660,120.40 is: 12,990,180.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,061,342.80 : 18,092,014.20 = 8,660,120.40 : x
  2. Step 2: Convert to fraction form
    12,061,342.80/18,092,014.20 = 8,660,120.40/x
  3. Step 3: Cross multiply
    12,061,342.80x = 18,092,014.20 × 8,660,120.40
  4. Step 4: Simplify right side
    12,061,342.80x = 156,679,021,250,509.69
  5. Step 5: Solve for x
    x = 156,679,021,250,509.69/12,061,342.80
  6. Step 6: Final answer
    x = 12,990,180.60

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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.