Home / 13,480,229.20-20,220,343.80-12,787,387.60

Finding the Fourth Proportional to 13,480,229.20, 20,220,343.80 and 12,787,387.60

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Solution

The fourth proportional to 13,480,229.20, 20,220,343.80 and 12,787,387.60 is: 19,181,081.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480,229.20 : 20,220,343.80 = 12,787,387.60 : x
  2. Step 2: Convert to fraction form
    13,480,229.20/20,220,343.80 = 12,787,387.60/x
  3. Step 3: Cross multiply
    13,480,229.20x = 20,220,343.80 × 12,787,387.60
  4. Step 4: Simplify right side
    13,480,229.20x = 258,565,373,575,856.88
  5. Step 5: Solve for x
    x = 258,565,373,575,856.88/13,480,229.20
  6. Step 6: Final answer
    x = 19,181,081.40

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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.