Home / 392,509,834.87-541,667,154.42-216,304,152.46

Finding the Fourth Proportional to 392,509,834.87, 541,667,154.42 and 216,304,152.46

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Solution

The fourth proportional to 392,509,834.87, 541,667,154.42 and 216,304,152.46 is: 298,501,704.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,509,834.87 : 541,667,154.42 = 216,304,152.46 : x
  2. Step 2: Convert to fraction form
    392,509,834.87/541,667,154.42 = 216,304,152.46/x
  3. Step 3: Cross multiply
    392,509,834.87x = 541,667,154.42 × 216,304,152.46
  4. Step 4: Simplify right side
    392,509,834.87x = 117,164,854,752,238,032
  5. Step 5: Solve for x
    x = 117,164,854,752,238,032/392,509,834.87
  6. Step 6: Final answer
    x = 298,501,704.53

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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.