Home / 406,320,144.12-560,687,568.75-225,271,969.28

Finding the Fourth Proportional to 406,320,144.12, 560,687,568.75 and 225,271,969.28

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Solution

The fourth proportional to 406,320,144.12, 560,687,568.75 and 225,271,969.28 is: 310,856,339.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,320,144.12 : 560,687,568.75 = 225,271,969.28 : x
  2. Step 2: Convert to fraction form
    406,320,144.12/560,687,568.75 = 225,271,969.28/x
  3. Step 3: Cross multiply
    406,320,144.12x = 560,687,568.75 × 225,271,969.28
  4. Step 4: Simplify right side
    406,320,144.12x = 126,307,192,760,324,448
  5. Step 5: Solve for x
    x = 126,307,192,760,324,448/406,320,144.12
  6. Step 6: Final answer
    x = 310,856,339.73

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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.