Home / 311,890,759.62-430,392,196.53-170,734,673.22

Finding the Fourth Proportional to 311,890,759.62, 430,392,196.53 and 170,734,673.22

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Solution

The fourth proportional to 311,890,759.62, 430,392,196.53 and 170,734,673.22 is: 235,604,514.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,890,759.62 : 430,392,196.53 = 170,734,673.22 : x
  2. Step 2: Convert to fraction form
    311,890,759.62/430,392,196.53 = 170,734,673.22/x
  3. Step 3: Cross multiply
    311,890,759.62x = 430,392,196.53 × 170,734,673.22
  4. Step 4: Simplify right side
    311,890,759.62x = 73,482,871,030,987,568
  5. Step 5: Solve for x
    x = 73,482,871,030,987,568/311,890,759.62
  6. Step 6: Final answer
    x = 235,604,514.61

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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.