Home / 12,456,086.40-18,684,129.60-5,724,500.40

Finding the Fourth Proportional to 12,456,086.40, 18,684,129.60 and 5,724,500.40

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Solution

The fourth proportional to 12,456,086.40, 18,684,129.60 and 5,724,500.40 is: 8,586,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,456,086.40 : 18,684,129.60 = 5,724,500.40 : x
  2. Step 2: Convert to fraction form
    12,456,086.40/18,684,129.60 = 5,724,500.40/x
  3. Step 3: Cross multiply
    12,456,086.40x = 18,684,129.60 × 5,724,500.40
  4. Step 4: Simplify right side
    12,456,086.40x = 106,957,307,368,851.86
  5. Step 5: Solve for x
    x = 106,957,307,368,851.86/12,456,086.40
  6. Step 6: Final answer
    x = 8,586,750.60

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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.