Home / 87,487,425.60-131,231,138.40-82,448,577.60

Finding the Fourth Proportional to 87,487,425.60, 131,231,138.40 and 82,448,577.60

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Solution

The fourth proportional to 87,487,425.60, 131,231,138.40 and 82,448,577.60 is: 123,672,866.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,487,425.60 : 131,231,138.40 = 82,448,577.60 : x
  2. Step 2: Convert to fraction form
    87,487,425.60/131,231,138.40 = 82,448,577.60/x
  3. Step 3: Cross multiply
    87,487,425.60x = 131,231,138.40 × 82,448,577.60
  4. Step 4: Simplify right side
    87,487,425.60x = 10,819,820,697,908,740
  5. Step 5: Solve for x
    x = 10,819,820,697,908,740/87,487,425.60
  6. Step 6: Final answer
    x = 123,672,866.40

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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.