Home / 8,372,280.70-12,558,421.05-8,260,306.30

Finding the Fourth Proportional to 8,372,280.70, 12,558,421.05 and 8,260,306.30

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Solution

The fourth proportional to 8,372,280.70, 12,558,421.05 and 8,260,306.30 is: 12,390,459.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,372,280.70 : 12,558,421.05 = 8,260,306.30 : x
  2. Step 2: Convert to fraction form
    8,372,280.70/12,558,421.05 = 8,260,306.30/x
  3. Step 3: Cross multiply
    8,372,280.70x = 12,558,421.05 × 8,260,306.30
  4. Step 4: Simplify right side
    8,372,280.70x = 103,736,404,517,367.62
  5. Step 5: Solve for x
    x = 103,736,404,517,367.62/8,372,280.70
  6. Step 6: Final answer
    x = 12,390,459.45

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Double scale
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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.