Home / 18,386,187.92-25,371,061.69-11,320,659.17

Finding the Fourth Proportional to 18,386,187.92, 25,371,061.69 and 11,320,659.17

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Solution

The fourth proportional to 18,386,187.92, 25,371,061.69 and 11,320,659.17 is: 15,621,353.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,386,187.92 : 25,371,061.69 = 11,320,659.17 : x
  2. Step 2: Convert to fraction form
    18,386,187.92/25,371,061.69 = 11,320,659.17/x
  3. Step 3: Cross multiply
    18,386,187.92x = 25,371,061.69 × 11,320,659.17
  4. Step 4: Simplify right side
    18,386,187.92x = 287,217,142,173,534.19
  5. Step 5: Solve for x
    x = 287,217,142,173,534.19/18,386,187.92
  6. Step 6: Final answer
    x = 15,621,353.56

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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.