Home / 39,960,930.80-55,146,083.85-21,626,216.30

Finding the Fourth Proportional to 39,960,930.80, 55,146,083.85 and 21,626,216.30

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Solution

The fourth proportional to 39,960,930.80, 55,146,083.85 and 21,626,216.30 is: 29,844,178.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960,930.80 : 55,146,083.85 = 21,626,216.30 : x
  2. Step 2: Convert to fraction form
    39,960,930.80/55,146,083.85 = 21,626,216.30/x
  3. Step 3: Cross multiply
    39,960,930.80x = 55,146,083.85 × 21,626,216.30
  4. Step 4: Simplify right side
    39,960,930.80x = 1,192,601,137,575,902
  5. Step 5: Solve for x
    x = 1,192,601,137,575,902/39,960,930.80
  6. Step 6: Final answer
    x = 29,844,178.14

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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.