Home / 465,418,643.40-698,127,965.10-458,616,198.60

Finding the Fourth Proportional to 465,418,643.40, 698,127,965.10 and 458,616,198.60

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Solution

The fourth proportional to 465,418,643.40, 698,127,965.10 and 458,616,198.60 is: 687,924,297.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,418,643.40 : 698,127,965.10 = 458,616,198.60 : x
  2. Step 2: Convert to fraction form
    465,418,643.40/698,127,965.10 = 458,616,198.60/x
  3. Step 3: Cross multiply
    465,418,643.40x = 698,127,965.10 × 458,616,198.60
  4. Step 4: Simplify right side
    465,418,643.40x = 320,172,793,490,515,520
  5. Step 5: Solve for x
    x = 320,172,793,490,515,520/465,418,643.40
  6. Step 6: Final answer
    x = 687,924,297.90

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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.