Home / 485,280,999.45-727,921,499.18-370,489,743.45

Finding the Fourth Proportional to 485,280,999.45, 727,921,499.18 and 370,489,743.45

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Solution

The fourth proportional to 485,280,999.45, 727,921,499.18 and 370,489,743.45 is: 555,734,615.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,280,999.45 : 727,921,499.18 = 370,489,743.45 : x
  2. Step 2: Convert to fraction form
    485,280,999.45/727,921,499.18 = 370,489,743.45/x
  3. Step 3: Cross multiply
    485,280,999.45x = 727,921,499.18 × 370,489,743.45
  4. Step 4: Simplify right side
    485,280,999.45x = 269,687,449,481,085,120
  5. Step 5: Solve for x
    x = 269,687,449,481,085,120/485,280,999.45
  6. Step 6: Final answer
    x = 555,734,615.18

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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.