Home / 12,431,294.30-18,645,169.92-3,911,409.32

Finding the Fourth Proportional to 12,431,294.30, 18,645,169.92 and 3,911,409.32

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Solution

The fourth proportional to 12,431,294.30, 18,645,169.92 and 3,911,409.32 is: 5,866,556.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431,294.30 : 18,645,169.92 = 3,911,409.32 : x
  2. Step 2: Convert to fraction form
    12,431,294.30/18,645,169.92 = 3,911,409.32/x
  3. Step 3: Cross multiply
    12,431,294.30x = 18,645,169.92 × 3,911,409.32
  4. Step 4: Simplify right side
    12,431,294.30x = 72,928,891,398,071.66
  5. Step 5: Solve for x
    x = 72,928,891,398,071.66/12,431,294.30
  6. Step 6: Final answer
    x = 5,866,556.58

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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.