Home / 7,239,556.85-9,990,669.80-3,976,447.14

Finding the Fourth Proportional to 7,239,556.85, 9,990,669.80 and 3,976,447.14

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Solution

The fourth proportional to 7,239,556.85, 9,990,669.80 and 3,976,447.14 is: 5,487,541.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239,556.85 : 9,990,669.80 = 3,976,447.14 : x
  2. Step 2: Convert to fraction form
    7,239,556.85/9,990,669.80 = 3,976,447.14/x
  3. Step 3: Cross multiply
    7,239,556.85x = 9,990,669.80 × 3,976,447.14
  4. Step 4: Simplify right side
    7,239,556.85x = 39,727,370,362,835.49
  5. Step 5: Solve for x
    x = 39,727,370,362,835.49/7,239,556.85
  6. Step 6: Final answer
    x = 5,487,541.74

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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.