Home / 107,350,811.20-161,026,216.80-90,722,612.80

Finding the Fourth Proportional to 107,350,811.20, 161,026,216.80 and 90,722,612.80

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Solution

The fourth proportional to 107,350,811.20, 161,026,216.80 and 90,722,612.80 is: 136,083,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,350,811.20 : 161,026,216.80 = 90,722,612.80 : x
  2. Step 2: Convert to fraction form
    107,350,811.20/161,026,216.80 = 90,722,612.80/x
  3. Step 3: Cross multiply
    107,350,811.20x = 161,026,216.80 × 90,722,612.80
  4. Step 4: Simplify right side
    107,350,811.20x = 14,608,719,117,395,256
  5. Step 5: Solve for x
    x = 14,608,719,117,395,256/107,350,811.20
  6. Step 6: Final answer
    x = 136,083,919.20

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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.