Home / 87,935,998.40-131,903,997.60-79,007,789.60

Finding the Fourth Proportional to 87,935,998.40, 131,903,997.60 and 79,007,789.60

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Solution

The fourth proportional to 87,935,998.40, 131,903,997.60 and 79,007,789.60 is: 118,511,684.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,935,998.40 : 131,903,997.60 = 79,007,789.60 : x
  2. Step 2: Convert to fraction form
    87,935,998.40/131,903,997.60 = 79,007,789.60/x
  3. Step 3: Cross multiply
    87,935,998.40x = 131,903,997.60 × 79,007,789.60
  4. Step 4: Simplify right side
    87,935,998.40x = 10,421,443,289,779,704
  5. Step 5: Solve for x
    x = 10,421,443,289,779,704/87,935,998.40
  6. Step 6: Final answer
    x = 118,511,684.40

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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.