Home / 199,278,424.51-275,004,343.78-111,172,422.49

Finding the Fourth Proportional to 199,278,424.51, 275,004,343.78 and 111,172,422.49

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Solution

The fourth proportional to 199,278,424.51, 275,004,343.78 and 111,172,422.49 is: 153,418,008.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,278,424.51 : 275,004,343.78 = 111,172,422.49 : x
  2. Step 2: Convert to fraction form
    199,278,424.51/275,004,343.78 = 111,172,422.49/x
  3. Step 3: Cross multiply
    199,278,424.51x = 275,004,343.78 × 111,172,422.49
  4. Step 4: Simplify right side
    199,278,424.51x = 30,572,899,094,187,836
  5. Step 5: Solve for x
    x = 30,572,899,094,187,836/199,278,424.51
  6. Step 6: Final answer
    x = 153,418,008.84

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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.