Home / 21,176,734.59-31,766,561.13-8,868,305.12

Finding the Fourth Proportional to 21,176,734.59, 31,766,561.13 and 8,868,305.12

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Solution

The fourth proportional to 21,176,734.59, 31,766,561.13 and 8,868,305.12 is: 13,303,068.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,176,734.59 : 31,766,561.13 = 8,868,305.12 : x
  2. Step 2: Convert to fraction form
    21,176,734.59/31,766,561.13 = 8,868,305.12/x
  3. Step 3: Cross multiply
    21,176,734.59x = 31,766,561.13 × 8,868,305.12
  4. Step 4: Simplify right side
    21,176,734.59x = 281,715,556,819,001.44
  5. Step 5: Solve for x
    x = 281,715,556,819,001.44/21,176,734.59
  6. Step 6: Final answer
    x = 13,303,068.78

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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.