Home / 87,717,546.11-121,012,215.41-52,890,888.78

Finding the Fourth Proportional to 87,717,546.11, 121,012,215.41 and 52,890,888.78

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Solution

The fourth proportional to 87,717,546.11, 121,012,215.41 and 52,890,888.78 is: 72,966,514.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,717,546.11 : 121,012,215.41 = 52,890,888.78 : x
  2. Step 2: Convert to fraction form
    87,717,546.11/121,012,215.41 = 52,890,888.78/x
  3. Step 3: Cross multiply
    87,717,546.11x = 121,012,215.41 × 52,890,888.78
  4. Step 4: Simplify right side
    87,717,546.11x = 6,400,443,626,007,258
  5. Step 5: Solve for x
    x = 6,400,443,626,007,258/87,717,546.11
  6. Step 6: Final answer
    x = 72,966,514.80

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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.