Home / 150,641,974.72-207,892,829.76-83,661,239.20

Finding the Fourth Proportional to 150,641,974.72, 207,892,829.76 and 83,661,239.20

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Solution

The fourth proportional to 150,641,974.72, 207,892,829.76 and 83,661,239.20 is: 115,456,344.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,641,974.72 : 207,892,829.76 = 83,661,239.20 : x
  2. Step 2: Convert to fraction form
    150,641,974.72/207,892,829.76 = 83,661,239.20/x
  3. Step 3: Cross multiply
    150,641,974.72x = 207,892,829.76 × 83,661,239.20
  4. Step 4: Simplify right side
    150,641,974.72x = 17,392,571,758,516,238
  5. Step 5: Solve for x
    x = 17,392,571,758,516,238/150,641,974.72
  6. Step 6: Final answer
    x = 115,456,344.69

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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.