Home / 392,509,867.56-541,667,199.41-216,304,185.16

Finding the Fourth Proportional to 392,509,867.56, 541,667,199.41 and 216,304,185.16

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Solution

The fourth proportional to 392,509,867.56, 541,667,199.41 and 216,304,185.16 is: 298,501,749.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,509,867.56 : 541,667,199.41 = 216,304,185.16 : x
  2. Step 2: Convert to fraction form
    392,509,867.56/541,667,199.41 = 216,304,185.16/x
  3. Step 3: Cross multiply
    392,509,867.56x = 541,667,199.41 × 216,304,185.16
  4. Step 4: Simplify right side
    392,509,867.56x = 117,164,882,196,279,280
  5. Step 5: Solve for x
    x = 117,164,882,196,279,280/392,509,867.56
  6. Step 6: Final answer
    x = 298,501,749.59

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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.