Home / 3,613,405.16-4,986,638.86-1,981,881.30

Finding the Fourth Proportional to 3,613,405.16, 4,986,638.86 and 1,981,881.30

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Solution

The fourth proportional to 3,613,405.16, 4,986,638.86 and 1,981,881.30 is: 2,735,072.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,613,405.16 : 4,986,638.86 = 1,981,881.30 : x
  2. Step 2: Convert to fraction form
    3,613,405.16/4,986,638.86 = 1,981,881.30/x
  3. Step 3: Cross multiply
    3,613,405.16x = 4,986,638.86 × 1,981,881.30
  4. Step 4: Simplify right side
    3,613,405.16x = 9,882,926,306,487.32
  5. Step 5: Solve for x
    x = 9,882,926,306,487.32/3,613,405.16
  6. Step 6: Final answer
    x = 2,735,072.84

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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.