Home / 31,455,382.36-43,386,067.03-20,996,125.27

Finding the Fourth Proportional to 31,455,382.36, 43,386,067.03 and 20,996,125.27

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Solution

The fourth proportional to 31,455,382.36, 43,386,067.03 and 20,996,125.27 is: 28,959,727.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455,382.36 : 43,386,067.03 = 20,996,125.27 : x
  2. Step 2: Convert to fraction form
    31,455,382.36/43,386,067.03 = 20,996,125.27/x
  3. Step 3: Cross multiply
    31,455,382.36x = 43,386,067.03 × 20,996,125.27
  4. Step 4: Simplify right side
    31,455,382.36x = 910,939,298,334,496.88
  5. Step 5: Solve for x
    x = 910,939,298,334,496.88/31,455,382.36
  6. Step 6: Final answer
    x = 28,959,727.40

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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.