Home / 21,471,221.20-32,185,836.60-19,203,739.60

Finding the Fourth Proportional to 21,471,221.20, 32,185,836.60 and 19,203,739.60

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Solution

The fourth proportional to 21,471,221.20, 32,185,836.60 and 19,203,739.60 is: 28,786,831.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,471,221.20 : 32,185,836.60 = 19,203,739.60 : x
  2. Step 2: Convert to fraction form
    21,471,221.20/32,185,836.60 = 19,203,739.60/x
  3. Step 3: Cross multiply
    21,471,221.20x = 32,185,836.60 × 19,203,739.60
  4. Step 4: Simplify right side
    21,471,221.20x = 618,088,424,874,549.38
  5. Step 5: Solve for x
    x = 618,088,424,874,549.38/21,471,221.20
  6. Step 6: Final answer
    x = 28,786,831.41

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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.