Home / 21,013,354.20-31,496,703.30-8,229,610.20

Finding the Fourth Proportional to 21,013,354.20, 31,496,703.30 and 8,229,610.20

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Solution

The fourth proportional to 21,013,354.20, 31,496,703.30 and 8,229,610.20 is: 12,335,279.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013,354.20 : 31,496,703.30 = 8,229,610.20 : x
  2. Step 2: Convert to fraction form
    21,013,354.20/31,496,703.30 = 8,229,610.20/x
  3. Step 3: Cross multiply
    21,013,354.20x = 31,496,703.30 × 8,229,610.20
  4. Step 4: Simplify right side
    21,013,354.20x = 259,205,590,744,053.69
  5. Step 5: Solve for x
    x = 259,205,590,744,053.69/21,013,354.20
  6. Step 6: Final answer
    x = 12,335,279.19

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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.