Home / 311,645,047.50-430,033,015.17-172,396,949.58

Finding the Fourth Proportional to 311,645,047.50, 430,033,015.17 and 172,396,949.58

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Solution

The fourth proportional to 311,645,047.50, 430,033,015.17 and 172,396,949.58 is: 237,887,239.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,645,047.50 : 430,033,015.17 = 172,396,949.58 : x
  2. Step 2: Convert to fraction form
    311,645,047.50/430,033,015.17 = 172,396,949.58/x
  3. Step 3: Cross multiply
    311,645,047.50x = 430,033,015.17 × 172,396,949.58
  4. Step 4: Simplify right side
    311,645,047.50x = 74,136,380,033,997,872
  5. Step 5: Solve for x
    x = 74,136,380,033,997,872/311,645,047.50
  6. Step 6: Final answer
    x = 237,887,239.44

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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.