Home / 15,218,428.89-21,000,869.01-8,248,956.80

Finding the Fourth Proportional to 15,218,428.89, 21,000,869.01 and 8,248,956.80

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Solution

The fourth proportional to 15,218,428.89, 21,000,869.01 and 8,248,956.80 is: 11,383,255.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,218,428.89 : 21,000,869.01 = 8,248,956.80 : x
  2. Step 2: Convert to fraction form
    15,218,428.89/21,000,869.01 = 8,248,956.80/x
  3. Step 3: Cross multiply
    15,218,428.89x = 21,000,869.01 × 8,248,956.80
  4. Step 4: Simplify right side
    15,218,428.89x = 173,235,261,120,944.44
  5. Step 5: Solve for x
    x = 173,235,261,120,944.44/15,218,428.89
  6. Step 6: Final answer
    x = 11,383,255.29

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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.