Home / 83,413,839.61-125,120,509.12-21,165,033.43

Finding the Fourth Proportional to 83,413,839.61, 125,120,509.12 and 21,165,033.43

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Solution

The fourth proportional to 83,413,839.61, 125,120,509.12 and 21,165,033.43 is: 31,747,486.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,413,839.61 : 125,120,509.12 = 21,165,033.43 : x
  2. Step 2: Convert to fraction form
    83,413,839.61/125,120,509.12 = 21,165,033.43/x
  3. Step 3: Cross multiply
    83,413,839.61x = 125,120,509.12 × 21,165,033.43
  4. Step 4: Simplify right side
    83,413,839.61x = 2,648,179,758,303,420
  5. Step 5: Solve for x
    x = 2,648,179,758,303,420/83,413,839.61
  6. Step 6: Final answer
    x = 31,747,486.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.