Home / 39,251,730.80-54,167,391-21,847,701.36

Finding the Fourth Proportional to 39,251,730.80, 54,167,391 and 21,847,701.36

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Solution

The fourth proportional to 39,251,730.80, 54,167,391 and 21,847,701.36 is: 30,149,829.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,251,730.80 : 54,167,391 = 21,847,701.36 : x
  2. Step 2: Convert to fraction form
    39,251,730.80/54,167,391 = 21,847,701.36/x
  3. Step 3: Cross multiply
    39,251,730.80x = 54,167,391 × 21,847,701.36
  4. Step 4: Simplify right side
    39,251,730.80x = 1,183,432,982,018,351.75
  5. Step 5: Solve for x
    x = 1,183,432,982,018,351.75/39,251,730.80
  6. Step 6: Final answer
    x = 30,149,829.27

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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.