Home / 392,577,542.50-541,755,371.57-216,365,117.31

Finding the Fourth Proportional to 392,577,542.50, 541,755,371.57 and 216,365,117.31

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Solution

The fourth proportional to 392,577,542.50, 541,755,371.57 and 216,365,117.31 is: 298,582,959.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,577,542.50 : 541,755,371.57 = 216,365,117.31 : x
  2. Step 2: Convert to fraction form
    392,577,542.50/541,755,371.57 = 216,365,117.31/x
  3. Step 3: Cross multiply
    392,577,542.50x = 541,755,371.57 × 216,365,117.31
  4. Step 4: Simplify right side
    392,577,542.50x = 117,216,964,520,629,488
  5. Step 5: Solve for x
    x = 117,216,964,520,629,488/392,577,542.50
  6. Step 6: Final answer
    x = 298,582,959.62

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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.