Home / 12,867,495.57-19,304,979.08-5,187,176.82

Finding the Fourth Proportional to 12,867,495.57, 19,304,979.08 and 5,187,176.82

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Solution

The fourth proportional to 12,867,495.57, 19,304,979.08 and 5,187,176.82 is: 7,782,271.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867,495.57 : 19,304,979.08 = 5,187,176.82 : x
  2. Step 2: Convert to fraction form
    12,867,495.57/19,304,979.08 = 5,187,176.82/x
  3. Step 3: Cross multiply
    12,867,495.57x = 19,304,979.08 × 5,187,176.82
  4. Step 4: Simplify right side
    12,867,495.57x = 100,138,339,968,425.05
  5. Step 5: Solve for x
    x = 100,138,339,968,425.05/12,867,495.57
  6. Step 6: Final answer
    x = 7,782,271.18

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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.