Home / 39,270,479.36-54,192,744.96-21,629,043.20

Finding the Fourth Proportional to 39,270,479.36, 54,192,744.96 and 21,629,043.20

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Solution

The fourth proportional to 39,270,479.36, 54,192,744.96 and 21,629,043.20 is: 29,847,795.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,270,479.36 : 54,192,744.96 = 21,629,043.20 : x
  2. Step 2: Convert to fraction form
    39,270,479.36/54,192,744.96 = 21,629,043.20/x
  3. Step 3: Cross multiply
    39,270,479.36x = 54,192,744.96 × 21,629,043.20
  4. Step 4: Simplify right side
    39,270,479.36x = 1,172,137,221,866,422.25
  5. Step 5: Solve for x
    x = 1,172,137,221,866,422.25/39,270,479.36
  6. Step 6: Final answer
    x = 29,847,795.11

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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.