Home / 20,792,658.26-31,329,354.32-17,228,700.78

Finding the Fourth Proportional to 20,792,658.26, 31,329,354.32 and 17,228,700.78

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Solution

The fourth proportional to 20,792,658.26, 31,329,354.32 and 17,228,700.78 is: 25,959,358.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792,658.26 : 31,329,354.32 = 17,228,700.78 : x
  2. Step 2: Convert to fraction form
    20,792,658.26/31,329,354.32 = 17,228,700.78/x
  3. Step 3: Cross multiply
    20,792,658.26x = 31,329,354.32 × 17,228,700.78
  4. Step 4: Simplify right side
    20,792,658.26x = 539,764,071,209,880.44
  5. Step 5: Solve for x
    x = 539,764,071,209,880.44/20,792,658.26
  6. Step 6: Final answer
    x = 25,959,358.56

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.