Home / 15,266,121.16-21,067,292.82-8,391,307.72

Finding the Fourth Proportional to 15,266,121.16, 21,067,292.82 and 8,391,307.72

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Solution

The fourth proportional to 15,266,121.16, 21,067,292.82 and 8,391,307.72 is: 11,580,029.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,266,121.16 : 21,067,292.82 = 8,391,307.72 : x
  2. Step 2: Convert to fraction form
    15,266,121.16/21,067,292.82 = 8,391,307.72/x
  3. Step 3: Cross multiply
    15,266,121.16x = 21,067,292.82 × 8,391,307.72
  4. Step 4: Simplify right side
    15,266,121.16x = 176,782,136,879,966.59
  5. Step 5: Solve for x
    x = 176,782,136,879,966.59/15,266,121.16
  6. Step 6: Final answer
    x = 11,580,029.73

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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.