Home / 491,112,169.20-736,770,605.40-163,689,400.80

Finding the Fourth Proportional to 491,112,169.20, 736,770,605.40 and 163,689,400.80

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Solution

The fourth proportional to 491,112,169.20, 736,770,605.40 and 163,689,400.80 is: 245,568,215.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,112,169.20 : 736,770,605.40 = 163,689,400.80 : x
  2. Step 2: Convert to fraction form
    491,112,169.20/736,770,605.40 = 163,689,400.80/x
  3. Step 3: Cross multiply
    491,112,169.20x = 736,770,605.40 × 163,689,400.80
  4. Step 4: Simplify right side
    491,112,169.20x = 120,601,538,924,979,248
  5. Step 5: Solve for x
    x = 120,601,538,924,979,248/491,112,169.20
  6. Step 6: Final answer
    x = 245,568,215.35

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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.