Home / 3,918,018.23-5,406,568.53-2,198,806.59

Finding the Fourth Proportional to 3,918,018.23, 5,406,568.53 and 2,198,806.59

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Solution

The fourth proportional to 3,918,018.23, 5,406,568.53 and 2,198,806.59 is: 3,034,186.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918,018.23 : 5,406,568.53 = 2,198,806.59 : x
  2. Step 2: Convert to fraction form
    3,918,018.23/5,406,568.53 = 2,198,806.59/x
  3. Step 3: Cross multiply
    3,918,018.23x = 5,406,568.53 × 2,198,806.59
  4. Step 4: Simplify right side
    3,918,018.23x = 11,887,998,525,079.72
  5. Step 5: Solve for x
    x = 11,887,998,525,079.72/3,918,018.23
  6. Step 6: Final answer
    x = 3,034,186.63

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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.