Home / 7,231,699.86-9,979,868.30-3,968,818.18

Finding the Fourth Proportional to 7,231,699.86, 9,979,868.30 and 3,968,818.18

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Solution

The fourth proportional to 7,231,699.86, 9,979,868.30 and 3,968,818.18 is: 5,477,036.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,231,699.86 : 9,979,868.30 = 3,968,818.18 : x
  2. Step 2: Convert to fraction form
    7,231,699.86/9,979,868.30 = 3,968,818.18/x
  3. Step 3: Cross multiply
    7,231,699.86x = 9,979,868.30 × 3,968,818.18
  4. Step 4: Simplify right side
    7,231,699.86x = 39,608,282,743,045.70
  5. Step 5: Solve for x
    x = 39,608,282,743,045.70/7,231,699.86
  6. Step 6: Final answer
    x = 5,477,036.31

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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.