Home / 39,960,929.81-55,146,082.46-21,626,215.31

Finding the Fourth Proportional to 39,960,929.81, 55,146,082.46 and 21,626,215.31

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Solution

The fourth proportional to 39,960,929.81, 55,146,082.46 and 21,626,215.31 is: 29,844,176.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960,929.81 : 55,146,082.46 = 21,626,215.31 : x
  2. Step 2: Convert to fraction form
    39,960,929.81/55,146,082.46 = 21,626,215.31/x
  3. Step 3: Cross multiply
    39,960,929.81x = 55,146,082.46 × 21,626,215.31
  4. Step 4: Simplify right side
    39,960,929.81x = 1,192,601,052,782,974.50
  5. Step 5: Solve for x
    x = 1,192,601,052,782,974.50/39,960,929.81
  6. Step 6: Final answer
    x = 29,844,176.76

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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.