Home / 392,509,840.37-541,667,162.01-216,304,157.96

Finding the Fourth Proportional to 392,509,840.37, 541,667,162.01 and 216,304,157.96

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Solution

The fourth proportional to 392,509,840.37, 541,667,162.01 and 216,304,157.96 is: 298,501,712.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,509,840.37 : 541,667,162.01 = 216,304,157.96 : x
  2. Step 2: Convert to fraction form
    392,509,840.37/541,667,162.01 = 216,304,157.96/x
  3. Step 3: Cross multiply
    392,509,840.37x = 541,667,162.01 × 216,304,157.96
  4. Step 4: Simplify right side
    392,509,840.37x = 117,164,859,373,155,952
  5. Step 5: Solve for x
    x = 117,164,859,373,155,952/392,509,840.37
  6. Step 6: Final answer
    x = 298,501,712.12

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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.