Home / 515,040,940.20-772,561,410.30-494,952,470.40

Finding the Fourth Proportional to 515,040,940.20, 772,561,410.30 and 494,952,470.40

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Solution

The fourth proportional to 515,040,940.20, 772,561,410.30 and 494,952,470.40 is: 742,428,705.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,040,940.20 : 772,561,410.30 = 494,952,470.40 : x
  2. Step 2: Convert to fraction form
    515,040,940.20/772,561,410.30 = 494,952,470.40/x
  3. Step 3: Cross multiply
    515,040,940.20x = 772,561,410.30 × 494,952,470.40
  4. Step 4: Simplify right side
    515,040,940.20x = 382,381,178,563,692,992
  5. Step 5: Solve for x
    x = 382,381,178,563,692,992/515,040,940.20
  6. Step 6: Final answer
    x = 742,428,705.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.