Home / 126,015,321.40-188,739,546.90-74,996,985.40

Finding the Fourth Proportional to 126,015,321.40, 188,739,546.90 and 74,996,985.40

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Solution

The fourth proportional to 126,015,321.40, 188,739,546.90 and 74,996,985.40 is: 112,326,793.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,015,321.40 : 188,739,546.90 = 74,996,985.40 : x
  2. Step 2: Convert to fraction form
    126,015,321.40/188,739,546.90 = 74,996,985.40/x
  3. Step 3: Cross multiply
    126,015,321.40x = 188,739,546.90 × 74,996,985.40
  4. Step 4: Simplify right side
    126,015,321.40x = 14,154,897,043,261,916
  5. Step 5: Solve for x
    x = 14,154,897,043,261,916/126,015,321.40
  6. Step 6: Final answer
    x = 112,326,793.96

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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.