Home / 120,303,989.20-166,015,208.76-68,091,903.75

Finding the Fourth Proportional to 120,303,989.20, 166,015,208.76 and 68,091,903.75

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Solution

The fourth proportional to 120,303,989.20, 166,015,208.76 and 68,091,903.75 is: 93,964,395.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,303,989.20 : 166,015,208.76 = 68,091,903.75 : x
  2. Step 2: Convert to fraction form
    120,303,989.20/166,015,208.76 = 68,091,903.75/x
  3. Step 3: Cross multiply
    120,303,989.20x = 166,015,208.76 × 68,091,903.75
  4. Step 4: Simplify right side
    120,303,989.20x = 11,304,291,615,922,076
  5. Step 5: Solve for x
    x = 11,304,291,615,922,076/120,303,989.20
  6. Step 6: Final answer
    x = 93,964,395.46

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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.