Home / 12,879,977.28-19,319,867.49-3,295,340.43

Finding the Fourth Proportional to 12,879,977.28, 19,319,867.49 and 3,295,340.43

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Solution

The fourth proportional to 12,879,977.28, 19,319,867.49 and 3,295,340.43 is: 4,942,985.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,879,977.28 : 19,319,867.49 = 3,295,340.43 : x
  2. Step 2: Convert to fraction form
    12,879,977.28/19,319,867.49 = 3,295,340.43/x
  3. Step 3: Cross multiply
    12,879,977.28x = 19,319,867.49 × 3,295,340.43
  4. Step 4: Simplify right side
    12,879,977.28x = 63,665,540,442,039.62
  5. Step 5: Solve for x
    x = 63,665,540,442,039.62/12,879,977.28
  6. Step 6: Final answer
    x = 4,942,985.46

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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.