Home / 28,005,886.82-38,647,168.94-15,447,439.06

Finding the Fourth Proportional to 28,005,886.82, 38,647,168.94 and 15,447,439.06

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Solution

The fourth proportional to 28,005,886.82, 38,647,168.94 and 15,447,439.06 is: 21,316,939.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005,886.82 : 38,647,168.94 = 15,447,439.06 : x
  2. Step 2: Convert to fraction form
    28,005,886.82/38,647,168.94 = 15,447,439.06/x
  3. Step 3: Cross multiply
    28,005,886.82x = 38,647,168.94 × 15,447,439.06
  4. Step 4: Simplify right side
    28,005,886.82x = 596,999,787,042,174.75
  5. Step 5: Solve for x
    x = 596,999,787,042,174.75/28,005,886.82
  6. Step 6: Final answer
    x = 21,316,939.22

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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.