Home / 20,120,717.70-30,182,716.80-8,606,272.05

Finding the Fourth Proportional to 20,120,717.70, 30,182,716.80 and 8,606,272.05

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Solution

The fourth proportional to 20,120,717.70, 30,182,716.80 and 8,606,272.05 is: 12,910,109.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,120,717.70 : 30,182,716.80 = 8,606,272.05 : x
  2. Step 2: Convert to fraction form
    20,120,717.70/30,182,716.80 = 8,606,272.05/x
  3. Step 3: Cross multiply
    20,120,717.70x = 30,182,716.80 × 8,606,272.05
  4. Step 4: Simplify right side
    20,120,717.70x = 259,760,671,988,905.47
  5. Step 5: Solve for x
    x = 259,760,671,988,905.47/20,120,717.70
  6. Step 6: Final answer
    x = 12,910,109.66

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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.