Home / 150,641,982.72-207,892,840.80-83,661,247.20

Finding the Fourth Proportional to 150,641,982.72, 207,892,840.80 and 83,661,247.20

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Solution

The fourth proportional to 150,641,982.72, 207,892,840.80 and 83,661,247.20 is: 115,456,355.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,641,982.72 : 207,892,840.80 = 83,661,247.20 : x
  2. Step 2: Convert to fraction form
    150,641,982.72/207,892,840.80 = 83,661,247.20/x
  3. Step 3: Cross multiply
    150,641,982.72x = 207,892,840.80 × 83,661,247.20
  4. Step 4: Simplify right side
    150,641,982.72x = 17,392,574,345,279,048
  5. Step 5: Solve for x
    x = 17,392,574,345,279,048/150,641,982.72
  6. Step 6: Final answer
    x = 115,456,355.73

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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.