Home / 154,324,586.18-212,871,057.26-91,556,245.20

Finding the Fourth Proportional to 154,324,586.18, 212,871,057.26 and 91,556,245.20

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Solution

The fourth proportional to 154,324,586.18, 212,871,057.26 and 91,556,245.20 is: 126,290,147.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,324,586.18 : 212,871,057.26 = 91,556,245.20 : x
  2. Step 2: Convert to fraction form
    154,324,586.18/212,871,057.26 = 91,556,245.20/x
  3. Step 3: Cross multiply
    154,324,586.18x = 212,871,057.26 × 91,556,245.20
  4. Step 4: Simplify right side
    154,324,586.18x = 19,489,674,714,479,800
  5. Step 5: Solve for x
    x = 19,489,674,714,479,800/154,324,586.18
  6. Step 6: Final answer
    x = 126,290,147.26

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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.