Home / 156,061,747.89-215,192,662.25-99,456,868.85

Finding the Fourth Proportional to 156,061,747.89, 215,192,662.25 and 99,456,868.85

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Solution

The fourth proportional to 156,061,747.89, 215,192,662.25 and 99,456,868.85 is: 137,140,514.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,061,747.89 : 215,192,662.25 = 99,456,868.85 : x
  2. Step 2: Convert to fraction form
    156,061,747.89/215,192,662.25 = 99,456,868.85/x
  3. Step 3: Cross multiply
    156,061,747.89x = 215,192,662.25 × 99,456,868.85
  4. Step 4: Simplify right side
    156,061,747.89x = 21,402,388,385,307,348
  5. Step 5: Solve for x
    x = 21,402,388,385,307,348/156,061,747.89
  6. Step 6: Final answer
    x = 137,140,514.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.