Home / 21,715,990.80-29,961,347.40-12,545,287.44

Finding the Fourth Proportional to 21,715,990.80, 29,961,347.40 and 12,545,287.44

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Solution

The fourth proportional to 21,715,990.80, 29,961,347.40 and 12,545,287.44 is: 17,308,614.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,715,990.80 : 29,961,347.40 = 12,545,287.44 : x
  2. Step 2: Convert to fraction form
    21,715,990.80/29,961,347.40 = 12,545,287.44/x
  3. Step 3: Cross multiply
    21,715,990.80x = 29,961,347.40 × 12,545,287.44
  4. Step 4: Simplify right side
    21,715,990.80x = 375,873,715,222,696.62
  5. Step 5: Solve for x
    x = 375,873,715,222,696.62/21,715,990.80
  6. Step 6: Final answer
    x = 17,308,614.59

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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.