Home / 15,266,131.66-21,067,307.31-8,391,318.22

Finding the Fourth Proportional to 15,266,131.66, 21,067,307.31 and 8,391,318.22

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Solution

The fourth proportional to 15,266,131.66, 21,067,307.31 and 8,391,318.22 is: 11,580,044.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266,131.66 : 21,067,307.31 = 8,391,318.22 : x
  2. Step 2: Convert to fraction form
    15,266,131.66/21,067,307.31 = 8,391,318.22/x
  3. Step 3: Cross multiply
    15,266,131.66x = 21,067,307.31 × 8,391,318.22
  4. Step 4: Simplify right side
    15,266,131.66x = 176,782,479,676,742.19
  5. Step 5: Solve for x
    x = 176,782,479,676,742.19/15,266,131.66
  6. Step 6: Final answer
    x = 11,580,044.22

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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.