Home / 12,867,496.98-19,304,981.19-5,187,178.23

Finding the Fourth Proportional to 12,867,496.98, 19,304,981.19 and 5,187,178.23

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Solution

The fourth proportional to 12,867,496.98, 19,304,981.19 and 5,187,178.23 is: 7,782,273.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867,496.98 : 19,304,981.19 = 5,187,178.23 : x
  2. Step 2: Convert to fraction form
    12,867,496.98/19,304,981.19 = 5,187,178.23/x
  3. Step 3: Cross multiply
    12,867,496.98x = 19,304,981.19 × 5,187,178.23
  4. Step 4: Simplify right side
    12,867,496.98x = 100,138,378,159,327.52
  5. Step 5: Solve for x
    x = 100,138,378,159,327.52/12,867,496.98
  6. Step 6: Final answer
    x = 7,782,273.30

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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.