Home / 627,034,687.04-864,031,747.20-485,043,287.60

Finding the Fourth Proportional to 627,034,687.04, 864,031,747.20 and 485,043,287.60

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Solution

The fourth proportional to 627,034,687.04, 864,031,747.20 and 485,043,287.60 is: 668,372,592.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,034,687.04 : 864,031,747.20 = 485,043,287.60 : x
  2. Step 2: Convert to fraction form
    627,034,687.04/864,031,747.20 = 485,043,287.60/x
  3. Step 3: Cross multiply
    627,034,687.04x = 864,031,747.20 × 485,043,287.60
  4. Step 4: Simplify right side
    627,034,687.04x = 419,092,799,252,660,160
  5. Step 5: Solve for x
    x = 419,092,799,252,660,160/627,034,687.04
  6. Step 6: Final answer
    x = 668,372,592.32

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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.