Home / 99,856,387.20-149,784,580.80-82,836,278.40

Finding the Fourth Proportional to 99,856,387.20, 149,784,580.80 and 82,836,278.40

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Solution

The fourth proportional to 99,856,387.20, 149,784,580.80 and 82,836,278.40 is: 124,254,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,856,387.20 : 149,784,580.80 = 82,836,278.40 : x
  2. Step 2: Convert to fraction form
    99,856,387.20/149,784,580.80 = 82,836,278.40/x
  3. Step 3: Cross multiply
    99,856,387.20x = 149,784,580.80 × 82,836,278.40
  4. Step 4: Simplify right side
    99,856,387.20x = 12,407,597,235,176,096
  5. Step 5: Solve for x
    x = 12,407,597,235,176,096/99,856,387.20
  6. Step 6: Final answer
    x = 124,254,417.60

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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.