Home / 99,640,845.90-149,461,268.85-54,291,213.90

Finding the Fourth Proportional to 99,640,845.90, 149,461,268.85 and 54,291,213.90

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Solution

The fourth proportional to 99,640,845.90, 149,461,268.85 and 54,291,213.90 is: 81,436,820.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,640,845.90 : 149,461,268.85 = 54,291,213.90 : x
  2. Step 2: Convert to fraction form
    99,640,845.90/149,461,268.85 = 54,291,213.90/x
  3. Step 3: Cross multiply
    99,640,845.90x = 149,461,268.85 × 54,291,213.90
  4. Step 4: Simplify right side
    99,640,845.90x = 8,114,433,716,900,756
  5. Step 5: Solve for x
    x = 8,114,433,716,900,756/99,640,845.90
  6. Step 6: Final answer
    x = 81,436,820.85

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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.