Home / 202,019,708.88-278,787,078.12-109,200,218.16

Finding the Fourth Proportional to 202,019,708.88, 278,787,078.12 and 109,200,218.16

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Solution

The fourth proportional to 202,019,708.88, 278,787,078.12 and 109,200,218.16 is: 150,696,236.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,019,708.88 : 278,787,078.12 = 109,200,218.16 : x
  2. Step 2: Convert to fraction form
    202,019,708.88/278,787,078.12 = 109,200,218.16/x
  3. Step 3: Cross multiply
    202,019,708.88x = 278,787,078.12 × 109,200,218.16
  4. Step 4: Simplify right side
    202,019,708.88x = 30,443,609,750,892,964
  5. Step 5: Solve for x
    x = 30,443,609,750,892,964/202,019,708.88
  6. Step 6: Final answer
    x = 150,696,236.12

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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.