Home / 168,143,926.68-231,832,469.49-138,270,176.45

Finding the Fourth Proportional to 168,143,926.68, 231,832,469.49 and 138,270,176.45

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Solution

The fourth proportional to 168,143,926.68, 231,832,469.49 and 138,270,176.45 is: 190,643,320.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,143,926.68 : 231,832,469.49 = 138,270,176.45 : x
  2. Step 2: Convert to fraction form
    168,143,926.68/231,832,469.49 = 138,270,176.45/x
  3. Step 3: Cross multiply
    168,143,926.68x = 231,832,469.49 × 138,270,176.45
  4. Step 4: Simplify right side
    168,143,926.68x = 32,055,516,462,413,236
  5. Step 5: Solve for x
    x = 32,055,516,462,413,236/168,143,926.68
  6. Step 6: Final answer
    x = 190,643,320.25

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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.