Home / 515,040,793.20-772,561,189.80-494,952,323.40

Finding the Fourth Proportional to 515,040,793.20, 772,561,189.80 and 494,952,323.40

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Solution

The fourth proportional to 515,040,793.20, 772,561,189.80 and 494,952,323.40 is: 742,428,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,040,793.20 : 772,561,189.80 = 494,952,323.40 : x
  2. Step 2: Convert to fraction form
    515,040,793.20/772,561,189.80 = 494,952,323.40/x
  3. Step 3: Cross multiply
    515,040,793.20x = 772,561,189.80 × 494,952,323.40
  4. Step 4: Simplify right side
    515,040,793.20x = 382,380,955,860,178,368
  5. Step 5: Solve for x
    x = 382,380,955,860,178,368/515,040,793.20
  6. Step 6: Final answer
    x = 742,428,485.10

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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.