Home / 7,986,979.80-11,980,469.70-6,711,521.40

Finding the Fourth Proportional to 7,986,979.80, 11,980,469.70 and 6,711,521.40

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Solution

The fourth proportional to 7,986,979.80, 11,980,469.70 and 6,711,521.40 is: 10,067,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,986,979.80 : 11,980,469.70 = 6,711,521.40 : x
  2. Step 2: Convert to fraction form
    7,986,979.80/11,980,469.70 = 6,711,521.40/x
  3. Step 3: Cross multiply
    7,986,979.80x = 11,980,469.70 × 6,711,521.40
  4. Step 4: Simplify right side
    7,986,979.80x = 80,407,178,773,601.58
  5. Step 5: Solve for x
    x = 80,407,178,773,601.58/7,986,979.80
  6. Step 6: Final answer
    x = 10,067,282.10

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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.