Home / 120,282,483.56-165,990,418.28-65,278,403.24

Finding the Fourth Proportional to 120,282,483.56, 165,990,418.28 and 65,278,403.24

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Solution

The fourth proportional to 120,282,483.56, 165,990,418.28 and 65,278,403.24 is: 90,084,517.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,282,483.56 : 165,990,418.28 = 65,278,403.24 : x
  2. Step 2: Convert to fraction form
    120,282,483.56/165,990,418.28 = 65,278,403.24/x
  3. Step 3: Cross multiply
    120,282,483.56x = 165,990,418.28 × 65,278,403.24
  4. Step 4: Simplify right side
    120,282,483.56x = 10,835,589,458,458,108
  5. Step 5: Solve for x
    x = 10,835,589,458,458,108/120,282,483.56
  6. Step 6: Final answer
    x = 90,084,517.19

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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.