Home / 18,422,656.72-27,635,828.28-5,643,013.84

Finding the Fourth Proportional to 18,422,656.72, 27,635,828.28 and 5,643,013.84

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Solution

The fourth proportional to 18,422,656.72, 27,635,828.28 and 5,643,013.84 is: 8,465,085.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422,656.72 : 27,635,828.28 = 5,643,013.84 : x
  2. Step 2: Convert to fraction form
    18,422,656.72/27,635,828.28 = 5,643,013.84/x
  3. Step 3: Cross multiply
    18,422,656.72x = 27,635,828.28 × 5,643,013.84
  4. Step 4: Simplify right side
    18,422,656.72x = 155,949,361,463,903.41
  5. Step 5: Solve for x
    x = 155,949,361,463,903.41/18,422,656.72
  6. Step 6: Final answer
    x = 8,465,085.35

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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.