Home / 12,511,418.64-17,261,742.78-7,003,982.40

Finding the Fourth Proportional to 12,511,418.64, 17,261,742.78 and 7,003,982.40

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Solution

The fourth proportional to 12,511,418.64, 17,261,742.78 and 7,003,982.40 is: 9,663,248.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,511,418.64 : 17,261,742.78 = 7,003,982.40 : x
  2. Step 2: Convert to fraction form
    12,511,418.64/17,261,742.78 = 7,003,982.40/x
  3. Step 3: Cross multiply
    12,511,418.64x = 17,261,742.78 × 7,003,982.40
  4. Step 4: Simplify right side
    12,511,418.64x = 120,900,942,624,447.09
  5. Step 5: Solve for x
    x = 120,900,942,624,447.09/12,511,418.64
  6. Step 6: Final answer
    x = 9,663,248.12

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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.