Home / 279,886,906.61-386,383,766.15-174,074,428.25

Finding the Fourth Proportional to 279,886,906.61, 386,383,766.15 and 174,074,428.25

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Solution

The fourth proportional to 279,886,906.61, 386,383,766.15 and 174,074,428.25 is: 240,309,680.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,886,906.61 : 386,383,766.15 = 174,074,428.25 : x
  2. Step 2: Convert to fraction form
    279,886,906.61/386,383,766.15 = 174,074,428.25/x
  3. Step 3: Cross multiply
    279,886,906.61x = 386,383,766.15 × 174,074,428.25
  4. Step 4: Simplify right side
    279,886,906.61x = 67,259,533,177,642,952
  5. Step 5: Solve for x
    x = 67,259,533,177,642,952/279,886,906.61
  6. Step 6: Final answer
    x = 240,309,680.76

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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.