Home / 12,781,631.51-19,172,840.92-5,589,463.31

Finding the Fourth Proportional to 12,781,631.51, 19,172,840.92 and 5,589,463.31

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Solution

The fourth proportional to 12,781,631.51, 19,172,840.92 and 5,589,463.31 is: 8,384,367.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,631.51 : 19,172,840.92 = 5,589,463.31 : x
  2. Step 2: Convert to fraction form
    12,781,631.51/19,172,840.92 = 5,589,463.31/x
  3. Step 3: Cross multiply
    12,781,631.51x = 19,172,840.92 × 5,589,463.31
  4. Step 4: Simplify right side
    12,781,631.51x = 107,165,890,870,806.64
  5. Step 5: Solve for x
    x = 107,165,890,870,806.64/12,781,631.51
  6. Step 6: Final answer
    x = 8,384,367.11

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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.