Home / 392,393,891.03-541,528,029.02-216,181,849.93

Finding the Fourth Proportional to 392,393,891.03, 541,528,029.02 and 216,181,849.93

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Solution

The fourth proportional to 392,393,891.03, 541,528,029.02 and 216,181,849.93 is: 298,344,428.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,393,891.03 : 541,528,029.02 = 216,181,849.93 : x
  2. Step 2: Convert to fraction form
    392,393,891.03/541,528,029.02 = 216,181,849.93/x
  3. Step 3: Cross multiply
    392,393,891.03x = 541,528,029.02 × 216,181,849.93
  4. Step 4: Simplify right side
    392,393,891.03x = 117,068,531,101,676,976
  5. Step 5: Solve for x
    x = 117,068,531,101,676,976/392,393,891.03
  6. Step 6: Final answer
    x = 298,344,428.34

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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.