Home / 126,035,239.40-188,940,884.70-74,862,938.60

Finding the Fourth Proportional to 126,035,239.40, 188,940,884.70 and 74,862,938.60

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Solution

The fourth proportional to 126,035,239.40, 188,940,884.70 and 74,862,938.60 is: 112,227,896.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,035,239.40 : 188,940,884.70 = 74,862,938.60 : x
  2. Step 2: Convert to fraction form
    126,035,239.40/188,940,884.70 = 74,862,938.60/x
  3. Step 3: Cross multiply
    126,035,239.40x = 188,940,884.70 × 74,862,938.60
  4. Step 4: Simplify right side
    126,035,239.40x = 14,144,669,850,325,778
  5. Step 5: Solve for x
    x = 14,144,669,850,325,778/126,035,239.40
  6. Step 6: Final answer
    x = 112,227,896.88

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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.