Home / 311,942,496.92-430,494,098.88-172,713,260.60

Finding the Fourth Proportional to 311,942,496.92, 430,494,098.88 and 172,713,260.60

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Solution

The fourth proportional to 311,942,496.92, 430,494,098.88 and 172,713,260.60 is: 238,351,748.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,942,496.92 : 430,494,098.88 = 172,713,260.60 : x
  2. Step 2: Convert to fraction form
    311,942,496.92/430,494,098.88 = 172,713,260.60/x
  3. Step 3: Cross multiply
    311,942,496.92x = 430,494,098.88 × 172,713,260.60
  4. Step 4: Simplify right side
    311,942,496.92x = 74,352,039,486,623,600
  5. Step 5: Solve for x
    x = 74,352,039,486,623,600/311,942,496.92
  6. Step 6: Final answer
    x = 238,351,748.23

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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.