Home / 80,454,852.90-120,682,279.35-72,392,696.10

Finding the Fourth Proportional to 80,454,852.90, 120,682,279.35 and 72,392,696.10

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Solution

The fourth proportional to 80,454,852.90, 120,682,279.35 and 72,392,696.10 is: 108,589,044.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,454,852.90 : 120,682,279.35 = 72,392,696.10 : x
  2. Step 2: Convert to fraction form
    80,454,852.90/120,682,279.35 = 72,392,696.10/x
  3. Step 3: Cross multiply
    80,454,852.90x = 120,682,279.35 × 72,392,696.10
  4. Step 4: Simplify right side
    80,454,852.90x = 8,736,515,573,639,854
  5. Step 5: Solve for x
    x = 8,736,515,573,639,854/80,454,852.90
  6. Step 6: Final answer
    x = 108,589,044.15

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Double scale
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Similar ratio
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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.