Home / 87,967,140.80-131,950,711.20-55,513,810.40

Finding the Fourth Proportional to 87,967,140.80, 131,950,711.20 and 55,513,810.40

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Solution

The fourth proportional to 87,967,140.80, 131,950,711.20 and 55,513,810.40 is: 83,270,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,967,140.80 : 131,950,711.20 = 55,513,810.40 : x
  2. Step 2: Convert to fraction form
    87,967,140.80/131,950,711.20 = 55,513,810.40/x
  3. Step 3: Cross multiply
    87,967,140.80x = 131,950,711.20 × 55,513,810.40
  4. Step 4: Simplify right side
    87,967,140.80x = 7,325,086,763,701,956
  5. Step 5: Solve for x
    x = 7,325,086,763,701,956/87,967,140.80
  6. Step 6: Final answer
    x = 83,270,715.60

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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.