Home / 27,217,999.80-40,826,999.70-21,053,284.20

Finding the Fourth Proportional to 27,217,999.80, 40,826,999.70 and 21,053,284.20

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Solution

The fourth proportional to 27,217,999.80, 40,826,999.70 and 21,053,284.20 is: 31,579,926.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,217,999.80 : 40,826,999.70 = 21,053,284.20 : x
  2. Step 2: Convert to fraction form
    27,217,999.80/40,826,999.70 = 21,053,284.20/x
  3. Step 3: Cross multiply
    27,217,999.80x = 40,826,999.70 × 21,053,284.20
  4. Step 4: Simplify right side
    27,217,999.80x = 859,542,427,717,414.75
  5. Step 5: Solve for x
    x = 859,542,427,717,414.75/27,217,999.80
  6. Step 6: Final answer
    x = 31,579,926.30

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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.