Home / 6,840,148.80-9,438,575.58-3,940,478.40

Finding the Fourth Proportional to 6,840,148.80, 9,438,575.58 and 3,940,478.40

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Solution

The fourth proportional to 6,840,148.80, 9,438,575.58 and 3,940,478.40 is: 5,437,382.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,840,148.80 : 9,438,575.58 = 3,940,478.40 : x
  2. Step 2: Convert to fraction form
    6,840,148.80/9,438,575.58 = 3,940,478.40/x
  3. Step 3: Cross multiply
    6,840,148.80x = 9,438,575.58 × 3,940,478.40
  4. Step 4: Simplify right side
    6,840,148.80x = 37,192,503,199,757.47
  5. Step 5: Solve for x
    x = 37,192,503,199,757.47/6,840,148.80
  6. Step 6: Final answer
    x = 5,437,382.18

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1.5x scale

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.