Home / 392,615,076.78-541,776,947.22-227,613,275.10

Finding the Fourth Proportional to 392,615,076.78, 541,776,947.22 and 227,613,275.10

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Solution

The fourth proportional to 392,615,076.78, 541,776,947.22 and 227,613,275.10 is: 314,087,849.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,615,076.78 : 541,776,947.22 = 227,613,275.10 : x
  2. Step 2: Convert to fraction form
    392,615,076.78/541,776,947.22 = 227,613,275.10/x
  3. Step 3: Cross multiply
    392,615,076.78x = 541,776,947.22 × 227,613,275.10
  4. Step 4: Simplify right side
    392,615,076.78x = 123,315,625,330,424,048
  5. Step 5: Solve for x
    x = 123,315,625,330,424,048/392,615,076.78
  6. Step 6: Final answer
    x = 314,087,849.97

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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.