Home / 30,469,629.20-42,046,681.32-16,718,251.28

Finding the Fourth Proportional to 30,469,629.20, 42,046,681.32 and 16,718,251.28

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Solution

The fourth proportional to 30,469,629.20, 42,046,681.32 and 16,718,251.28 is: 23,070,414.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,469,629.20 : 42,046,681.32 = 16,718,251.28 : x
  2. Step 2: Convert to fraction form
    30,469,629.20/42,046,681.32 = 16,718,251.28/x
  3. Step 3: Cross multiply
    30,469,629.20x = 42,046,681.32 × 16,718,251.28
  4. Step 4: Simplify right side
    30,469,629.20x = 702,946,983,797,842.12
  5. Step 5: Solve for x
    x = 702,946,983,797,842.12/30,469,629.20
  6. Step 6: Final answer
    x = 23,070,414.78

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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.