Home / 154,751,362.84-213,556,879.38-85,135,249.72

Finding the Fourth Proportional to 154,751,362.84, 213,556,879.38 and 85,135,249.72

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Solution

The fourth proportional to 154,751,362.84, 213,556,879.38 and 85,135,249.72 is: 117,486,643.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,751,362.84 : 213,556,879.38 = 85,135,249.72 : x
  2. Step 2: Convert to fraction form
    154,751,362.84/213,556,879.38 = 85,135,249.72/x
  3. Step 3: Cross multiply
    154,751,362.84x = 213,556,879.38 × 85,135,249.72
  4. Step 4: Simplify right side
    154,751,362.84x = 18,181,218,255,440,220
  5. Step 5: Solve for x
    x = 18,181,218,255,440,220/154,751,362.84
  6. Step 6: Final answer
    x = 117,486,643.88

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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.