Home / 252,601,480.80-378,902,221.20-170,972,143.20

Finding the Fourth Proportional to 252,601,480.80, 378,902,221.20 and 170,972,143.20

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Solution

The fourth proportional to 252,601,480.80, 378,902,221.20 and 170,972,143.20 is: 256,458,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,601,480.80 : 378,902,221.20 = 170,972,143.20 : x
  2. Step 2: Convert to fraction form
    252,601,480.80/378,902,221.20 = 170,972,143.20/x
  3. Step 3: Cross multiply
    252,601,480.80x = 378,902,221.20 × 170,972,143.20
  4. Step 4: Simplify right side
    252,601,480.80x = 64,781,724,821,804,472
  5. Step 5: Solve for x
    x = 64,781,724,821,804,472/252,601,480.80
  6. Step 6: Final answer
    x = 256,458,214.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.