Home / 18,665,288.36-25,743,495.74-12,141,001.20

Finding the Fourth Proportional to 18,665,288.36, 25,743,495.74 and 12,141,001.20

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Solution

The fourth proportional to 18,665,288.36, 25,743,495.74 and 12,141,001.20 is: 16,745,083.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665,288.36 : 25,743,495.74 = 12,141,001.20 : x
  2. Step 2: Convert to fraction form
    18,665,288.36/25,743,495.74 = 12,141,001.20/x
  3. Step 3: Cross multiply
    18,665,288.36x = 25,743,495.74 × 12,141,001.20
  4. Step 4: Simplify right side
    18,665,288.36x = 312,551,812,707,367.94
  5. Step 5: Solve for x
    x = 312,551,812,707,367.94/18,665,288.36
  6. Step 6: Final answer
    x = 16,745,083.53

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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.