Home / 158,795,347.20-238,193,020.80-67,928,121.60

Finding the Fourth Proportional to 158,795,347.20, 238,193,020.80 and 67,928,121.60

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Solution

The fourth proportional to 158,795,347.20, 238,193,020.80 and 67,928,121.60 is: 101,892,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,795,347.20 : 238,193,020.80 = 67,928,121.60 : x
  2. Step 2: Convert to fraction form
    158,795,347.20/238,193,020.80 = 67,928,121.60/x
  3. Step 3: Cross multiply
    158,795,347.20x = 238,193,020.80 × 67,928,121.60
  4. Step 4: Simplify right side
    158,795,347.20x = 16,180,004,481,173,728
  5. Step 5: Solve for x
    x = 16,180,004,481,173,728/158,795,347.20
  6. Step 6: Final answer
    x = 101,892,182.40

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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.