Home / 327,637,999.20-491,456,998.80-85,300,903.20

Finding the Fourth Proportional to 327,637,999.20, 491,456,998.80 and 85,300,903.20

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Solution

The fourth proportional to 327,637,999.20, 491,456,998.80 and 85,300,903.20 is: 127,951,354.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,637,999.20 : 491,456,998.80 = 85,300,903.20 : x
  2. Step 2: Convert to fraction form
    327,637,999.20/491,456,998.80 = 85,300,903.20/x
  3. Step 3: Cross multiply
    327,637,999.20x = 491,456,998.80 × 85,300,903.20
  4. Step 4: Simplify right side
    327,637,999.20x = 41,921,725,881,601,320
  5. Step 5: Solve for x
    x = 41,921,725,881,601,320/327,637,999.20
  6. Step 6: Final answer
    x = 127,951,354.80

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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.