Home / 198,144,003.60-297,216,005.40-120,659,905.80

Finding the Fourth Proportional to 198,144,003.60, 297,216,005.40 and 120,659,905.80

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Solution

The fourth proportional to 198,144,003.60, 297,216,005.40 and 120,659,905.80 is: 180,989,858.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,144,003.60 : 297,216,005.40 = 120,659,905.80 : x
  2. Step 2: Convert to fraction form
    198,144,003.60/297,216,005.40 = 120,659,905.80/x
  3. Step 3: Cross multiply
    198,144,003.60x = 297,216,005.40 × 120,659,905.80
  4. Step 4: Simplify right side
    198,144,003.60x = 35,862,055,213,816,288
  5. Step 5: Solve for x
    x = 35,862,055,213,816,288/198,144,003.60
  6. Step 6: Final answer
    x = 180,989,858.70

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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.