Home / 122,214,137.28-168,652,144.80-67,209,993.60

Finding the Fourth Proportional to 122,214,137.28, 168,652,144.80 and 67,209,993.60

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Solution

The fourth proportional to 122,214,137.28, 168,652,144.80 and 67,209,993.60 is: 92,747,940.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,214,137.28 : 168,652,144.80 = 67,209,993.60 : x
  2. Step 2: Convert to fraction form
    122,214,137.28/168,652,144.80 = 67,209,993.60/x
  3. Step 3: Cross multiply
    122,214,137.28x = 168,652,144.80 × 67,209,993.60
  4. Step 4: Simplify right side
    122,214,137.28x = 11,335,109,572,634,274
  5. Step 5: Solve for x
    x = 11,335,109,572,634,274/122,214,137.28
  6. Step 6: Final answer
    x = 92,747,940.83

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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.