Home / 3,990,654.84-5,507,125.86-2,179,818.84

Finding the Fourth Proportional to 3,990,654.84, 5,507,125.86 and 2,179,818.84

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Solution

The fourth proportional to 3,990,654.84, 5,507,125.86 and 2,179,818.84 is: 3,008,162.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,990,654.84 : 5,507,125.86 = 2,179,818.84 : x
  2. Step 2: Convert to fraction form
    3,990,654.84/5,507,125.86 = 2,179,818.84/x
  3. Step 3: Cross multiply
    3,990,654.84x = 5,507,125.86 × 2,179,818.84
  4. Step 4: Simplify right side
    3,990,654.84x = 12,004,536,720,443.76
  5. Step 5: Solve for x
    x = 12,004,536,720,443.76/3,990,654.84
  6. Step 6: Final answer
    x = 3,008,162.12

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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.