Home / 7,778,068.80-11,668,270.08-2,728,489.92

Finding the Fourth Proportional to 7,778,068.80, 11,668,270.08 and 2,728,489.92

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Solution

The fourth proportional to 7,778,068.80, 11,668,270.08 and 2,728,489.92 is: 4,093,144.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778,068.80 : 11,668,270.08 = 2,728,489.92 : x
  2. Step 2: Convert to fraction form
    7,778,068.80/11,668,270.08 = 2,728,489.92/x
  3. Step 3: Cross multiply
    7,778,068.80x = 11,668,270.08 × 2,728,489.92
  4. Step 4: Simplify right side
    7,778,068.80x = 31,836,757,297,117.59
  5. Step 5: Solve for x
    x = 31,836,757,297,117.59/7,778,068.80
  6. Step 6: Final answer
    x = 4,093,144.21

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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.