Home / 13,378,039.40-20,067,059.10-3,280,660.40

Finding the Fourth Proportional to 13,378,039.40, 20,067,059.10 and 3,280,660.40

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Solution

The fourth proportional to 13,378,039.40, 20,067,059.10 and 3,280,660.40 is: 4,920,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,378,039.40 : 20,067,059.10 = 3,280,660.40 : x
  2. Step 2: Convert to fraction form
    13,378,039.40/20,067,059.10 = 3,280,660.40/x
  3. Step 3: Cross multiply
    13,378,039.40x = 20,067,059.10 × 3,280,660.40
  4. Step 4: Simplify right side
    13,378,039.40x = 65,833,206,133,829.64
  5. Step 5: Solve for x
    x = 65,833,206,133,829.64/13,378,039.40
  6. Step 6: Final answer
    x = 4,920,990.60

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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.