Home / 99,591,490.60-149,376,176.70-81,609,231.40

Finding the Fourth Proportional to 99,591,490.60, 149,376,176.70 and 81,609,231.40

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Solution

The fourth proportional to 99,591,490.60, 149,376,176.70 and 81,609,231.40 is: 122,404,784.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,591,490.60 : 149,376,176.70 = 81,609,231.40 : x
  2. Step 2: Convert to fraction form
    99,591,490.60/149,376,176.70 = 81,609,231.40/x
  3. Step 3: Cross multiply
    99,591,490.60x = 149,376,176.70 × 81,609,231.40
  4. Step 4: Simplify right side
    99,591,490.60x = 12,190,474,969,957,588
  5. Step 5: Solve for x
    x = 12,190,474,969,957,588/99,591,490.60
  6. Step 6: Final answer
    x = 122,404,784.75

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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.