Home / 99,609,195.90-149,413,793.85-72,186,840.30

Finding the Fourth Proportional to 99,609,195.90, 149,413,793.85 and 72,186,840.30

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Solution

The fourth proportional to 99,609,195.90, 149,413,793.85 and 72,186,840.30 is: 108,280,260.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,609,195.90 : 149,413,793.85 = 72,186,840.30 : x
  2. Step 2: Convert to fraction form
    99,609,195.90/149,413,793.85 = 72,186,840.30/x
  3. Step 3: Cross multiply
    99,609,195.90x = 149,413,793.85 × 72,186,840.30
  4. Step 4: Simplify right side
    99,609,195.90x = 10,785,709,675,267,072
  5. Step 5: Solve for x
    x = 10,785,709,675,267,072/99,609,195.90
  6. Step 6: Final answer
    x = 108,280,260.45

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Double scale
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Similar ratio
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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.