Home / 87,935,999.40-131,903,999.10-79,007,790.60

Finding the Fourth Proportional to 87,935,999.40, 131,903,999.10 and 79,007,790.60

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Solution

The fourth proportional to 87,935,999.40, 131,903,999.10 and 79,007,790.60 is: 118,511,685.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,935,999.40 : 131,903,999.10 = 79,007,790.60 : x
  2. Step 2: Convert to fraction form
    87,935,999.40/131,903,999.10 = 79,007,790.60/x
  3. Step 3: Cross multiply
    87,935,999.40x = 131,903,999.10 × 79,007,790.60
  4. Step 4: Simplify right side
    87,935,999.40x = 10,421,443,540,195,388
  5. Step 5: Solve for x
    x = 10,421,443,540,195,388/87,935,999.40
  6. Step 6: Final answer
    x = 118,511,685.90

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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.