Home / 20,511,029.10-30,766,543.65-17,856,821.10

Finding the Fourth Proportional to 20,511,029.10, 30,766,543.65 and 17,856,821.10

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Solution

The fourth proportional to 20,511,029.10, 30,766,543.65 and 17,856,821.10 is: 26,785,231.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,511,029.10 : 30,766,543.65 = 17,856,821.10 : x
  2. Step 2: Convert to fraction form
    20,511,029.10/30,766,543.65 = 17,856,821.10/x
  3. Step 3: Cross multiply
    20,511,029.10x = 30,766,543.65 × 17,856,821.10
  4. Step 4: Simplify right side
    20,511,029.10x = 549,392,665,823,391.06
  5. Step 5: Solve for x
    x = 549,392,665,823,391.06/20,511,029.10
  6. Step 6: Final answer
    x = 26,785,231.65

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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.