Home / 31,455,506.39-43,386,238.17-20,996,249.36

Finding the Fourth Proportional to 31,455,506.39, 43,386,238.17 and 20,996,249.36

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Solution

The fourth proportional to 31,455,506.39, 43,386,238.17 and 20,996,249.36 is: 28,959,898.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,455,506.39 : 43,386,238.17 = 20,996,249.36 : x
  2. Step 2: Convert to fraction form
    31,455,506.39/43,386,238.17 = 20,996,249.36/x
  3. Step 3: Cross multiply
    31,455,506.39x = 43,386,238.17 × 20,996,249.36
  4. Step 4: Simplify right side
    31,455,506.39x = 910,948,275,192,738.88
  5. Step 5: Solve for x
    x = 910,948,275,192,738.88/31,455,506.39
  6. Step 6: Final answer
    x = 28,959,898.60

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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.