Home / 485,441,264.54-670,091,121.68-318,188,304.12

Finding the Fourth Proportional to 485,441,264.54, 670,091,121.68 and 318,188,304.12

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Solution

The fourth proportional to 485,441,264.54, 670,091,121.68 and 318,188,304.12 is: 439,219,269.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,441,264.54 : 670,091,121.68 = 318,188,304.12 : x
  2. Step 2: Convert to fraction form
    485,441,264.54/670,091,121.68 = 318,188,304.12/x
  3. Step 3: Cross multiply
    485,441,264.54x = 670,091,121.68 × 318,188,304.12
  4. Step 4: Simplify right side
    485,441,264.54x = 213,215,157,613,227,744
  5. Step 5: Solve for x
    x = 213,215,157,613,227,744/485,441,264.54
  6. Step 6: Final answer
    x = 439,219,269.53

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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.