Home / 8,510,117.40-12,765,176.10-7,813,387.80

Finding the Fourth Proportional to 8,510,117.40, 12,765,176.10 and 7,813,387.80

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Solution

The fourth proportional to 8,510,117.40, 12,765,176.10 and 7,813,387.80 is: 11,720,081.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,510,117.40 : 12,765,176.10 = 7,813,387.80 : x
  2. Step 2: Convert to fraction form
    8,510,117.40/12,765,176.10 = 7,813,387.80/x
  3. Step 3: Cross multiply
    8,510,117.40x = 12,765,176.10 × 7,813,387.80
  4. Step 4: Simplify right side
    8,510,117.40x = 99,739,271,204,591.58
  5. Step 5: Solve for x
    x = 99,739,271,204,591.58/8,510,117.40
  6. Step 6: Final answer
    x = 11,720,081.70

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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.