Home / 12,515,863.94-18,781,693.72-5,327,386.32

Finding the Fourth Proportional to 12,515,863.94, 18,781,693.72 and 5,327,386.32

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Solution

The fourth proportional to 12,515,863.94, 18,781,693.72 and 5,327,386.32 is: 7,994,441.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,515,863.94 : 18,781,693.72 = 5,327,386.32 : x
  2. Step 2: Convert to fraction form
    12,515,863.94/18,781,693.72 = 5,327,386.32/x
  3. Step 3: Cross multiply
    12,515,863.94x = 18,781,693.72 × 5,327,386.32
  4. Step 4: Simplify right side
    12,515,863.94x = 100,057,338,190,357.91
  5. Step 5: Solve for x
    x = 100,057,338,190,357.91/12,515,863.94
  6. Step 6: Final answer
    x = 7,994,441.19

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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.