Home / 80,109,140.80-120,156,712.80-26,256,452.80

Finding the Fourth Proportional to 80,109,140.80, 120,156,712.80 and 26,256,452.80

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Solution

The fourth proportional to 80,109,140.80, 120,156,712.80 and 26,256,452.80 is: 39,382,385.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,109,140.80 : 120,156,712.80 = 26,256,452.80 : x
  2. Step 2: Convert to fraction form
    80,109,140.80/120,156,712.80 = 26,256,452.80/x
  3. Step 3: Cross multiply
    80,109,140.80x = 120,156,712.80 × 26,256,452.80
  4. Step 4: Simplify right side
    80,109,140.80x = 3,154,889,058,236,356
  5. Step 5: Solve for x
    x = 3,154,889,058,236,356/80,109,140.80
  6. Step 6: Final answer
    x = 39,382,385.41

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1.5x scale

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.