Home / 87,552,269.80-131,328,404.70-85,760,679.40

Finding the Fourth Proportional to 87,552,269.80, 131,328,404.70 and 85,760,679.40

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Solution

The fourth proportional to 87,552,269.80, 131,328,404.70 and 85,760,679.40 is: 128,641,019.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,552,269.80 : 131,328,404.70 = 85,760,679.40 : x
  2. Step 2: Convert to fraction form
    87,552,269.80/131,328,404.70 = 85,760,679.40/x
  3. Step 3: Cross multiply
    87,552,269.80x = 131,328,404.70 × 85,760,679.40
  4. Step 4: Simplify right side
    87,552,269.80x = 11,262,813,211,590,154
  5. Step 5: Solve for x
    x = 11,262,813,211,590,154/87,552,269.80
  6. Step 6: Final answer
    x = 128,641,019.10

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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.