Home / 6,898,517.80-10,347,776.70-6,378,886.60

Finding the Fourth Proportional to 6,898,517.80, 10,347,776.70 and 6,378,886.60

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Solution

The fourth proportional to 6,898,517.80, 10,347,776.70 and 6,378,886.60 is: 9,568,329.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,898,517.80 : 10,347,776.70 = 6,378,886.60 : x
  2. Step 2: Convert to fraction form
    6,898,517.80/10,347,776.70 = 6,378,886.60/x
  3. Step 3: Cross multiply
    6,898,517.80x = 10,347,776.70 × 6,378,886.60
  4. Step 4: Simplify right side
    6,898,517.80x = 66,007,294,131,422.21
  5. Step 5: Solve for x
    x = 66,007,294,131,422.21/6,898,517.80
  6. Step 6: Final answer
    x = 9,568,329.90

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1.5x scale

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.