Home / 7,239,286.76-9,990,185.29-3,976,091.06

Finding the Fourth Proportional to 7,239,286.76, 9,990,185.29 and 3,976,091.06

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Solution

The fourth proportional to 7,239,286.76, 9,990,185.29 and 3,976,091.06 is: 5,486,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,239,286.76 : 9,990,185.29 = 3,976,091.06 : x
  2. Step 2: Convert to fraction form
    7,239,286.76/9,990,185.29 = 3,976,091.06/x
  3. Step 3: Cross multiply
    7,239,286.76x = 9,990,185.29 × 3,976,091.06
  4. Step 4: Simplify right side
    7,239,286.76x = 39,721,886,359,421.35
  5. Step 5: Solve for x
    x = 39,721,886,359,421.35/7,239,286.76
  6. Step 6: Final answer
    x = 5,486,988.94

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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.