Home / 8,372,115.20-12,558,172.80-8,260,140.80

Finding the Fourth Proportional to 8,372,115.20, 12,558,172.80 and 8,260,140.80

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Solution

The fourth proportional to 8,372,115.20, 12,558,172.80 and 8,260,140.80 is: 12,390,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372,115.20 : 12,558,172.80 = 8,260,140.80 : x
  2. Step 2: Convert to fraction form
    8,372,115.20/12,558,172.80 = 8,260,140.80/x
  3. Step 3: Cross multiply
    8,372,115.20x = 12,558,172.80 × 8,260,140.80
  4. Step 4: Simplify right side
    8,372,115.20x = 103,732,275,518,730.25
  5. Step 5: Solve for x
    x = 103,732,275,518,730.25/8,372,115.20
  6. Step 6: Final answer
    x = 12,390,211.20

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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.