Home / 15,469,149.56-21,349,394.64-9,357,621.80

Finding the Fourth Proportional to 15,469,149.56, 21,349,394.64 and 9,357,621.80

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Solution

The fourth proportional to 15,469,149.56, 21,349,394.64 and 9,357,621.80 is: 12,914,708.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,469,149.56 : 21,349,394.64 = 9,357,621.80 : x
  2. Step 2: Convert to fraction form
    15,469,149.56/21,349,394.64 = 9,357,621.80/x
  3. Step 3: Cross multiply
    15,469,149.56x = 21,349,394.64 × 9,357,621.80
  4. Step 4: Simplify right side
    15,469,149.56x = 199,779,560,700,067.19
  5. Step 5: Solve for x
    x = 199,779,560,700,067.19/15,469,149.56
  6. Step 6: Final answer
    x = 12,914,708.72

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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.