Home / 7,231,698.87-9,979,866.93-3,968,817.18

Finding the Fourth Proportional to 7,231,698.87, 9,979,866.93 and 3,968,817.18

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Solution

The fourth proportional to 7,231,698.87, 9,979,866.93 and 3,968,817.18 is: 5,477,034.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,698.87 : 9,979,866.93 = 3,968,817.18 : x
  2. Step 2: Convert to fraction form
    7,231,698.87/9,979,866.93 = 3,968,817.18/x
  3. Step 3: Cross multiply
    7,231,698.87x = 9,979,866.93 × 3,968,817.18
  4. Step 4: Simplify right side
    7,231,698.87x = 39,608,267,325,897.86
  5. Step 5: Solve for x
    x = 39,608,267,325,897.86/7,231,698.87
  6. Step 6: Final answer
    x = 5,477,034.93

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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.