Home / 392,509,875.60-541,667,210.49-216,304,193.16

Finding the Fourth Proportional to 392,509,875.60, 541,667,210.49 and 216,304,193.16

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Solution

The fourth proportional to 392,509,875.60, 541,667,210.49 and 216,304,193.16 is: 298,501,760.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,509,875.60 : 541,667,210.49 = 216,304,193.16 : x
  2. Step 2: Convert to fraction form
    392,509,875.60/541,667,210.49 = 216,304,193.16/x
  3. Step 3: Cross multiply
    392,509,875.60x = 541,667,210.49 × 216,304,193.16
  4. Step 4: Simplify right side
    392,509,875.60x = 117,164,888,926,267,344
  5. Step 5: Solve for x
    x = 117,164,888,926,267,344/392,509,875.60
  6. Step 6: Final answer
    x = 298,501,760.62

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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.