Home / 198,941,121.60-298,323,208.80-91,268,750.40

Finding the Fourth Proportional to 198,941,121.60, 298,323,208.80 and 91,268,750.40

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Solution

The fourth proportional to 198,941,121.60, 298,323,208.80 and 91,268,750.40 is: 136,862,536.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,941,121.60 : 298,323,208.80 = 91,268,750.40 : x
  2. Step 2: Convert to fraction form
    198,941,121.60/298,323,208.80 = 91,268,750.40/x
  3. Step 3: Cross multiply
    198,941,121.60x = 298,323,208.80 × 91,268,750.40
  4. Step 4: Simplify right side
    198,941,121.60x = 27,227,586,482,494,288
  5. Step 5: Solve for x
    x = 27,227,586,482,494,288/198,941,121.60
  6. Step 6: Final answer
    x = 136,862,536.33

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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.