Home / 18,681,959.21-28,022,772.06-5,902,463.46

Finding the Fourth Proportional to 18,681,959.21, 28,022,772.06 and 5,902,463.46

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Solution

The fourth proportional to 18,681,959.21, 28,022,772.06 and 5,902,463.46 is: 8,853,642.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,959.21 : 28,022,772.06 = 5,902,463.46 : x
  2. Step 2: Convert to fraction form
    18,681,959.21/28,022,772.06 = 5,902,463.46/x
  3. Step 3: Cross multiply
    18,681,959.21x = 28,022,772.06 × 5,902,463.46
  4. Step 4: Simplify right side
    18,681,959.21x = 165,403,388,132,058.91
  5. Step 5: Solve for x
    x = 165,403,388,132,058.91/18,681,959.21
  6. Step 6: Final answer
    x = 8,853,642.51

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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.