Home / 12,474,230.40-18,711,345.60-7,099,459.20

Finding the Fourth Proportional to 12,474,230.40, 18,711,345.60 and 7,099,459.20

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Solution

The fourth proportional to 12,474,230.40, 18,711,345.60 and 7,099,459.20 is: 10,649,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,474,230.40 : 18,711,345.60 = 7,099,459.20 : x
  2. Step 2: Convert to fraction form
    12,474,230.40/18,711,345.60 = 7,099,459.20/x
  3. Step 3: Cross multiply
    12,474,230.40x = 18,711,345.60 × 7,099,459.20
  4. Step 4: Simplify right side
    12,474,230.40x = 132,840,434,664,299.53
  5. Step 5: Solve for x
    x = 132,840,434,664,299.53/12,474,230.40
  6. Step 6: Final answer
    x = 10,649,188.80

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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.