Home / 13,149,757.60-18,146,613-7,348,537.60

Finding the Fourth Proportional to 13,149,757.60, 18,146,613 and 7,348,537.60

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Solution

The fourth proportional to 13,149,757.60, 18,146,613 and 7,348,537.60 is: 10,140,952.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149,757.60 : 18,146,613 = 7,348,537.60 : x
  2. Step 2: Convert to fraction form
    13,149,757.60/18,146,613 = 7,348,537.60/x
  3. Step 3: Cross multiply
    13,149,757.60x = 18,146,613 × 7,348,537.60
  4. Step 4: Simplify right side
    13,149,757.60x = 133,351,067,943,148.80
  5. Step 5: Solve for x
    x = 133,351,067,943,148.80/13,149,757.60
  6. Step 6: Final answer
    x = 10,140,952.56

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1.5x scale

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.