Home / 392,509,911.42-541,667,260.26-216,304,229.16

Finding the Fourth Proportional to 392,509,911.42, 541,667,260.26 and 216,304,229.16

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Solution

The fourth proportional to 392,509,911.42, 541,667,260.26 and 216,304,229.16 is: 298,501,810.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,509,911.42 : 541,667,260.26 = 216,304,229.16 : x
  2. Step 2: Convert to fraction form
    392,509,911.42/541,667,260.26 = 216,304,229.16/x
  3. Step 3: Cross multiply
    392,509,911.42x = 541,667,260.26 × 216,304,229.16
  4. Step 4: Simplify right side
    392,509,911.42x = 117,164,919,191,748,400
  5. Step 5: Solve for x
    x = 117,164,919,191,748,400/392,509,911.42
  6. Step 6: Final answer
    x = 298,501,810.48

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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.