Home / 522,263,134.28-721,757,205.17-428,028,649.31

Finding the Fourth Proportional to 522,263,134.28, 721,757,205.17 and 428,028,649.31

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Solution

The fourth proportional to 522,263,134.28, 721,757,205.17 and 428,028,649.31 is: 591,527,031.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,263,134.28 : 721,757,205.17 = 428,028,649.31 : x
  2. Step 2: Convert to fraction form
    522,263,134.28/721,757,205.17 = 428,028,649.31/x
  3. Step 3: Cross multiply
    522,263,134.28x = 721,757,205.17 × 428,028,649.31
  4. Step 4: Simplify right side
    522,263,134.28x = 308,932,761,658,675,648
  5. Step 5: Solve for x
    x = 308,932,761,658,675,648/522,263,134.28
  6. Step 6: Final answer
    x = 591,527,031.84

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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.