Home / 99,542,800.20-149,314,200.30-82,536,688.20

Finding the Fourth Proportional to 99,542,800.20, 149,314,200.30 and 82,536,688.20

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Solution

The fourth proportional to 99,542,800.20, 149,314,200.30 and 82,536,688.20 is: 123,805,032.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,542,800.20 : 149,314,200.30 = 82,536,688.20 : x
  2. Step 2: Convert to fraction form
    99,542,800.20/149,314,200.30 = 82,536,688.20/x
  3. Step 3: Cross multiply
    99,542,800.20x = 149,314,200.30 × 82,536,688.20
  4. Step 4: Simplify right side
    99,542,800.20x = 12,323,899,593,993,448
  5. Step 5: Solve for x
    x = 12,323,899,593,993,448/99,542,800.20
  6. Step 6: Final answer
    x = 123,805,032.30

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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.