Home / 8,079,979.84-11,147,458.48-6,219,964.21

Finding the Fourth Proportional to 8,079,979.84, 11,147,458.48 and 6,219,964.21

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Solution

The fourth proportional to 8,079,979.84, 11,147,458.48 and 6,219,964.21 is: 8,581,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079,979.84 : 11,147,458.48 = 6,219,964.21 : x
  2. Step 2: Convert to fraction form
    8,079,979.84/11,147,458.48 = 6,219,964.21/x
  3. Step 3: Cross multiply
    8,079,979.84x = 11,147,458.48 × 6,219,964.21
  4. Step 4: Simplify right side
    8,079,979.84x = 69,336,792,737,065.83
  5. Step 5: Solve for x
    x = 69,336,792,737,065.83/8,079,979.84
  6. Step 6: Final answer
    x = 8,581,307.65

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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.