Home / 57,177,209.80-85,782,648.93-20,785,026.79

Finding the Fourth Proportional to 57,177,209.80, 85,782,648.93 and 20,785,026.79

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Solution

The fourth proportional to 57,177,209.80, 85,782,648.93 and 20,785,026.79 is: 31,183,659.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,177,209.80 : 85,782,648.93 = 20,785,026.79 : x
  2. Step 2: Convert to fraction form
    57,177,209.80/85,782,648.93 = 20,785,026.79/x
  3. Step 3: Cross multiply
    57,177,209.80x = 85,782,648.93 × 20,785,026.79
  4. Step 4: Simplify right side
    57,177,209.80x = 1,782,994,656,127,215
  5. Step 5: Solve for x
    x = 1,782,994,656,127,215/57,177,209.80
  6. Step 6: Final answer
    x = 31,183,659.75

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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.