Home / 391,427,644.56-540,172,284.55-230,498,649.24

Finding the Fourth Proportional to 391,427,644.56, 540,172,284.55 and 230,498,649.24

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Solution

The fourth proportional to 391,427,644.56, 540,172,284.55 and 230,498,649.24 is: 318,089,393.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,427,644.56 : 540,172,284.55 = 230,498,649.24 : x
  2. Step 2: Convert to fraction form
    391,427,644.56/540,172,284.55 = 230,498,649.24/x
  3. Step 3: Cross multiply
    391,427,644.56x = 540,172,284.55 × 230,498,649.24
  4. Step 4: Simplify right side
    391,427,644.56x = 124,508,981,945,083,680
  5. Step 5: Solve for x
    x = 124,508,981,945,083,680/391,427,644.56
  6. Step 6: Final answer
    x = 318,089,393.21

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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.