Home / 680,856,773.28-1,021,428,637.92-220,759,065.60

Finding the Fourth Proportional to 680,856,773.28, 1,021,428,637.92 and 220,759,065.60

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Solution

The fourth proportional to 680,856,773.28, 1,021,428,637.92 and 220,759,065.60 is: 331,185,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,856,773.28 : 1,021,428,637.92 = 220,759,065.60 : x
  2. Step 2: Convert to fraction form
    680,856,773.28/1,021,428,637.92 = 220,759,065.60/x
  3. Step 3: Cross multiply
    680,856,773.28x = 1,021,428,637.92 × 220,759,065.60
  4. Step 4: Simplify right side
    680,856,773.28x = 225,489,631,684,299,904
  5. Step 5: Solve for x
    x = 225,489,631,684,299,904/680,856,773.28
  6. Step 6: Final answer
    x = 331,185,119.30

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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.