Home / 392,393,897.04-541,528,037.31-216,181,855.92

Finding the Fourth Proportional to 392,393,897.04, 541,528,037.31 and 216,181,855.92

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Solution

The fourth proportional to 392,393,897.04, 541,528,037.31 and 216,181,855.92 is: 298,344,436.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,393,897.04 : 541,528,037.31 = 216,181,855.92 : x
  2. Step 2: Convert to fraction form
    392,393,897.04/541,528,037.31 = 216,181,855.92/x
  3. Step 3: Cross multiply
    392,393,897.04x = 541,528,037.31 × 216,181,855.92
  4. Step 4: Simplify right side
    392,393,897.04x = 117,068,536,138,390,784
  5. Step 5: Solve for x
    x = 117,068,536,138,390,784/392,393,897.04
  6. Step 6: Final answer
    x = 298,344,436.60

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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.