Home / 15,401,687.12-21,247,656.36-9,286,718.48

Finding the Fourth Proportional to 15,401,687.12, 21,247,656.36 and 9,286,718.48

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Solution

The fourth proportional to 15,401,687.12, 21,247,656.36 and 9,286,718.48 is: 12,811,648.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,401,687.12 : 21,247,656.36 = 9,286,718.48 : x
  2. Step 2: Convert to fraction form
    15,401,687.12/21,247,656.36 = 9,286,718.48/x
  3. Step 3: Cross multiply
    15,401,687.12x = 21,247,656.36 × 9,286,718.48
  4. Step 4: Simplify right side
    15,401,687.12x = 197,321,002,975,101.53
  5. Step 5: Solve for x
    x = 197,321,002,975,101.53/15,401,687.12
  6. Step 6: Final answer
    x = 12,811,648.58

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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.