Home / 312,314,375.88-430,993,843.35-173,094,105.69

Finding the Fourth Proportional to 312,314,375.88, 430,993,843.35 and 173,094,105.69

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Solution

The fourth proportional to 312,314,375.88, 430,993,843.35 and 173,094,105.69 is: 238,869,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,314,375.88 : 430,993,843.35 = 173,094,105.69 : x
  2. Step 2: Convert to fraction form
    312,314,375.88/430,993,843.35 = 173,094,105.69/x
  3. Step 3: Cross multiply
    312,314,375.88x = 430,993,843.35 × 173,094,105.69
  4. Step 4: Simplify right side
    312,314,375.88x = 74,602,493,872,564,208
  5. Step 5: Solve for x
    x = 74,602,493,872,564,208/312,314,375.88
  6. Step 6: Final answer
    x = 238,869,868.42

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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.