Home / 78,392,358.78-108,187,514.64-47,031,587.97

Finding the Fourth Proportional to 78,392,358.78, 108,187,514.64 and 47,031,587.97

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Solution

The fourth proportional to 78,392,358.78, 108,187,514.64 and 47,031,587.97 is: 64,907,226.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,392,358.78 : 108,187,514.64 = 47,031,587.97 : x
  2. Step 2: Convert to fraction form
    78,392,358.78/108,187,514.64 = 47,031,587.97/x
  3. Step 3: Cross multiply
    78,392,358.78x = 108,187,514.64 × 47,031,587.97
  4. Step 4: Simplify right side
    78,392,358.78x = 5,088,230,612,046,823
  5. Step 5: Solve for x
    x = 5,088,230,612,046,823/78,392,358.78
  6. Step 6: Final answer
    x = 64,907,226.82

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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.