Home / 2,477,085.09-3,418,104.11-1,389,132.78

Finding the Fourth Proportional to 2,477,085.09, 3,418,104.11 and 1,389,132.78

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Solution

The fourth proportional to 2,477,085.09, 3,418,104.11 and 1,389,132.78 is: 1,916,849.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,477,085.09 : 3,418,104.11 = 1,389,132.78 : x
  2. Step 2: Convert to fraction form
    2,477,085.09/3,418,104.11 = 1,389,132.78/x
  3. Step 3: Cross multiply
    2,477,085.09x = 3,418,104.11 × 1,389,132.78
  4. Step 4: Simplify right side
    2,477,085.09x = 4,748,200,457,708.06
  5. Step 5: Solve for x
    x = 4,748,200,457,708.06/2,477,085.09
  6. Step 6: Final answer
    x = 1,916,849.96

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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.