Home / 18,586,420.68-25,643,667.06-11,141,366.30

Finding the Fourth Proportional to 18,586,420.68, 25,643,667.06 and 11,141,366.30

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Solution

The fourth proportional to 18,586,420.68, 25,643,667.06 and 11,141,366.30 is: 15,371,732.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586,420.68 : 25,643,667.06 = 11,141,366.30 : x
  2. Step 2: Convert to fraction form
    18,586,420.68/25,643,667.06 = 11,141,366.30/x
  3. Step 3: Cross multiply
    18,586,420.68x = 25,643,667.06 × 11,141,366.30
  4. Step 4: Simplify right side
    18,586,420.68x = 285,705,487,862,485.75
  5. Step 5: Solve for x
    x = 285,705,487,862,485.75/18,586,420.68
  6. Step 6: Final answer
    x = 15,371,732.56

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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.