Home / 19,859,694.80-29,789,542.20-9,781,998.80

Finding the Fourth Proportional to 19,859,694.80, 29,789,542.20 and 9,781,998.80

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Solution

The fourth proportional to 19,859,694.80, 29,789,542.20 and 9,781,998.80 is: 14,672,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859,694.80 : 29,789,542.20 = 9,781,998.80 : x
  2. Step 2: Convert to fraction form
    19,859,694.80/29,789,542.20 = 9,781,998.80/x
  3. Step 3: Cross multiply
    19,859,694.80x = 29,789,542.20 × 9,781,998.80
  4. Step 4: Simplify right side
    19,859,694.80x = 291,401,266,052,949.38
  5. Step 5: Solve for x
    x = 291,401,266,052,949.38/19,859,694.80
  6. Step 6: Final answer
    x = 14,672,998.20

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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.