Home / 21,899,610.03-30,221,657.56-12,110,712.78

Finding the Fourth Proportional to 21,899,610.03, 30,221,657.56 and 12,110,712.78

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Solution

The fourth proportional to 21,899,610.03, 30,221,657.56 and 12,110,712.78 is: 16,712,891.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899,610.03 : 30,221,657.56 = 12,110,712.78 : x
  2. Step 2: Convert to fraction form
    21,899,610.03/30,221,657.56 = 12,110,712.78/x
  3. Step 3: Cross multiply
    21,899,610.03x = 30,221,657.56 × 12,110,712.78
  4. Step 4: Simplify right side
    21,899,610.03x = 366,005,814,293,567.31
  5. Step 5: Solve for x
    x = 366,005,814,293,567.31/21,899,610.03
  6. Step 6: Final answer
    x = 16,712,891.87

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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.