Home / 139,739,191.25-192,840,873.87-81,036,710.46

Finding the Fourth Proportional to 139,739,191.25, 192,840,873.87 and 81,036,710.46

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Solution

The fourth proportional to 139,739,191.25, 192,840,873.87 and 81,036,710.46 is: 111,831,118.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,739,191.25 : 192,840,873.87 = 81,036,710.46 : x
  2. Step 2: Convert to fraction form
    139,739,191.25/192,840,873.87 = 81,036,710.46/x
  3. Step 3: Cross multiply
    139,739,191.25x = 192,840,873.87 × 81,036,710.46
  4. Step 4: Simplify right side
    139,739,191.25x = 15,627,190,060,656,568
  5. Step 5: Solve for x
    x = 15,627,190,060,656,568/139,739,191.25
  6. Step 6: Final answer
    x = 111,831,118.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.