Home / 87,619,211.80-131,176,875.30-85,099,787.80

Finding the Fourth Proportional to 87,619,211.80, 131,176,875.30 and 85,099,787.80

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Solution

The fourth proportional to 87,619,211.80, 131,176,875.30 and 85,099,787.80 is: 127,404,983.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,619,211.80 : 131,176,875.30 = 85,099,787.80 : x
  2. Step 2: Convert to fraction form
    87,619,211.80/131,176,875.30 = 85,099,787.80/x
  3. Step 3: Cross multiply
    87,619,211.80x = 131,176,875.30 × 85,099,787.80
  4. Step 4: Simplify right side
    87,619,211.80x = 11,163,124,252,297,060
  5. Step 5: Solve for x
    x = 11,163,124,252,297,060/87,619,211.80
  6. Step 6: Final answer
    x = 127,404,983.71

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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.