Home / 7,778,279.80-11,661,890.10-2,984,116.60

Finding the Fourth Proportional to 7,778,279.80, 11,661,890.10 and 2,984,116.60

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Solution

The fourth proportional to 7,778,279.80, 11,661,890.10 and 2,984,116.60 is: 4,474,053.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,778,279.80 : 11,661,890.10 = 2,984,116.60 : x
  2. Step 2: Convert to fraction form
    7,778,279.80/11,661,890.10 = 2,984,116.60/x
  3. Step 3: Cross multiply
    7,778,279.80x = 11,661,890.10 × 2,984,116.60
  4. Step 4: Simplify right side
    7,778,279.80x = 34,800,439,834,785.66
  5. Step 5: Solve for x
    x = 34,800,439,834,785.66/7,778,279.80
  6. Step 6: Final answer
    x = 4,474,053.48

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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.