Home / 80,109,136.80-120,156,706.80-26,256,448.80

Finding the Fourth Proportional to 80,109,136.80, 120,156,706.80 and 26,256,448.80

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Solution

The fourth proportional to 80,109,136.80, 120,156,706.80 and 26,256,448.80 is: 39,382,379.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,109,136.80 : 120,156,706.80 = 26,256,448.80 : x
  2. Step 2: Convert to fraction form
    80,109,136.80/120,156,706.80 = 26,256,448.80/x
  3. Step 3: Cross multiply
    80,109,136.80x = 120,156,706.80 × 26,256,448.80
  4. Step 4: Simplify right side
    80,109,136.80x = 3,154,888,420,070,812
  5. Step 5: Solve for x
    x = 3,154,888,420,070,812/80,109,136.80
  6. Step 6: Final answer
    x = 39,382,379.42

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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.