Home / 819,074,724.40-1,228,612,086.60-301,398,046.30

Finding the Fourth Proportional to 819,074,724.40, 1,228,612,086.60 and 301,398,046.30

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Solution

The fourth proportional to 819,074,724.40, 1,228,612,086.60 and 301,398,046.30 is: 452,097,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,074,724.40 : 1,228,612,086.60 = 301,398,046.30 : x
  2. Step 2: Convert to fraction form
    819,074,724.40/1,228,612,086.60 = 301,398,046.30/x
  3. Step 3: Cross multiply
    819,074,724.40x = 1,228,612,086.60 × 301,398,046.30
  4. Step 4: Simplify right side
    819,074,724.40x = 370,301,282,561,806,400
  5. Step 5: Solve for x
    x = 370,301,282,561,806,400/819,074,724.40
  6. Step 6: Final answer
    x = 452,097,069.45

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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.