Home / 87,552,211.80-131,328,317.70-85,760,621.40

Finding the Fourth Proportional to 87,552,211.80, 131,328,317.70 and 85,760,621.40

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Solution

The fourth proportional to 87,552,211.80, 131,328,317.70 and 85,760,621.40 is: 128,640,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,552,211.80 : 131,328,317.70 = 85,760,621.40 : x
  2. Step 2: Convert to fraction form
    87,552,211.80/131,328,317.70 = 85,760,621.40/x
  3. Step 3: Cross multiply
    87,552,211.80x = 131,328,317.70 × 85,760,621.40
  4. Step 4: Simplify right side
    87,552,211.80x = 11,262,798,133,368,620
  5. Step 5: Solve for x
    x = 11,262,798,133,368,620/87,552,211.80
  6. Step 6: Final answer
    x = 128,640,932.10

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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.