Home / 19,691,843.81-29,522,467.95-12,760,681.31

Finding the Fourth Proportional to 19,691,843.81, 29,522,467.95 and 12,760,681.31

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Solution

The fourth proportional to 19,691,843.81, 29,522,467.95 and 12,760,681.31 is: 19,131,108.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691,843.81 : 29,522,467.95 = 12,760,681.31 : x
  2. Step 2: Convert to fraction form
    19,691,843.81/29,522,467.95 = 12,760,681.31/x
  3. Step 3: Cross multiply
    19,691,843.81x = 29,522,467.95 × 12,760,681.31
  4. Step 4: Simplify right side
    19,691,843.81x = 376,726,804,847,026.69
  5. Step 5: Solve for x
    x = 376,726,804,847,026.69/19,691,843.81
  6. Step 6: Final answer
    x = 19,131,108.73

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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.