Home / 485,441,269.54-670,091,128.60-318,188,309.14

Finding the Fourth Proportional to 485,441,269.54, 670,091,128.60 and 318,188,309.14

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Solution

The fourth proportional to 485,441,269.54, 670,091,128.60 and 318,188,309.14 is: 439,219,276.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,441,269.54 : 670,091,128.60 = 318,188,309.14 : x
  2. Step 2: Convert to fraction form
    485,441,269.54/670,091,128.60 = 318,188,309.14/x
  3. Step 3: Cross multiply
    485,441,269.54x = 670,091,128.60 × 318,188,309.14
  4. Step 4: Simplify right side
    485,441,269.54x = 213,215,163,178,948,288
  5. Step 5: Solve for x
    x = 213,215,163,178,948,288/485,441,269.54
  6. Step 6: Final answer
    x = 439,219,276.48

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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.