Home / 90,847,971.60-136,083,000.60-75,731,427.60

Finding the Fourth Proportional to 90,847,971.60, 136,083,000.60 and 75,731,427.60

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Solution

The fourth proportional to 90,847,971.60, 136,083,000.60 and 75,731,427.60 is: 113,439,625.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,847,971.60 : 136,083,000.60 = 75,731,427.60 : x
  2. Step 2: Convert to fraction form
    90,847,971.60/136,083,000.60 = 75,731,427.60/x
  3. Step 3: Cross multiply
    90,847,971.60x = 136,083,000.60 × 75,731,427.60
  4. Step 4: Simplify right side
    90,847,971.60x = 10,305,759,907,529,656
  5. Step 5: Solve for x
    x = 10,305,759,907,529,656/90,847,971.60
  6. Step 6: Final answer
    x = 113,439,625.85

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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.