Home / 8,049,009.20-12,073,513.80-7,387,660.40

Finding the Fourth Proportional to 8,049,009.20, 12,073,513.80 and 7,387,660.40

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Solution

The fourth proportional to 8,049,009.20, 12,073,513.80 and 7,387,660.40 is: 11,081,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,049,009.20 : 12,073,513.80 = 7,387,660.40 : x
  2. Step 2: Convert to fraction form
    8,049,009.20/12,073,513.80 = 7,387,660.40/x
  3. Step 3: Cross multiply
    8,049,009.20x = 12,073,513.80 × 7,387,660.40
  4. Step 4: Simplify right side
    8,049,009.20x = 89,195,019,789,113.53
  5. Step 5: Solve for x
    x = 89,195,019,789,113.53/8,049,009.20
  6. Step 6: Final answer
    x = 11,081,490.60

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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.