Home / 85,276,613.80-127,914,920.70-21,451,205.80

Finding the Fourth Proportional to 85,276,613.80, 127,914,920.70 and 21,451,205.80

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Solution

The fourth proportional to 85,276,613.80, 127,914,920.70 and 21,451,205.80 is: 32,176,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,276,613.80 : 127,914,920.70 = 21,451,205.80 : x
  2. Step 2: Convert to fraction form
    85,276,613.80/127,914,920.70 = 21,451,205.80/x
  3. Step 3: Cross multiply
    85,276,613.80x = 127,914,920.70 × 21,451,205.80
  4. Step 4: Simplify right side
    85,276,613.80x = 2,743,929,288,826,380
  5. Step 5: Solve for x
    x = 2,743,929,288,826,380/85,276,613.80
  6. Step 6: Final answer
    x = 32,176,808.70

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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.