Home / 138,728,053.01-208,029,884.29-82,667,416.21

Finding the Fourth Proportional to 138,728,053.01, 208,029,884.29 and 82,667,416.21

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Solution

The fourth proportional to 138,728,053.01, 208,029,884.29 and 82,667,416.21 is: 123,964,062.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,728,053.01 : 208,029,884.29 = 82,667,416.21 : x
  2. Step 2: Convert to fraction form
    138,728,053.01/208,029,884.29 = 82,667,416.21/x
  3. Step 3: Cross multiply
    138,728,053.01x = 208,029,884.29 × 82,667,416.21
  4. Step 4: Simplify right side
    138,728,053.01x = 17,197,293,027,992,826
  5. Step 5: Solve for x
    x = 17,197,293,027,992,826/138,728,053.01
  6. Step 6: Final answer
    x = 123,964,062.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.