Home / 485,280,987.70-727,921,481.55-370,489,731.70

Finding the Fourth Proportional to 485,280,987.70, 727,921,481.55 and 370,489,731.70

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Solution

The fourth proportional to 485,280,987.70, 727,921,481.55 and 370,489,731.70 is: 555,734,597.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,280,987.70 : 727,921,481.55 = 370,489,731.70 : x
  2. Step 2: Convert to fraction form
    485,280,987.70/727,921,481.55 = 370,489,731.70/x
  3. Step 3: Cross multiply
    485,280,987.70x = 727,921,481.55 × 370,489,731.70
  4. Step 4: Simplify right side
    485,280,987.70x = 269,687,434,398,125,984
  5. Step 5: Solve for x
    x = 269,687,434,398,125,984/485,280,987.70
  6. Step 6: Final answer
    x = 555,734,597.55

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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.