Home / 144,229,910.64-199,037,969.70-78,150,391.44

Finding the Fourth Proportional to 144,229,910.64, 199,037,969.70 and 78,150,391.44

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Solution

The fourth proportional to 144,229,910.64, 199,037,969.70 and 78,150,391.44 is: 107,847,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,229,910.64 : 199,037,969.70 = 78,150,391.44 : x
  2. Step 2: Convert to fraction form
    144,229,910.64/199,037,969.70 = 78,150,391.44/x
  3. Step 3: Cross multiply
    144,229,910.64x = 199,037,969.70 × 78,150,391.44
  4. Step 4: Simplify right side
    144,229,910.64x = 15,554,895,243,477,858
  5. Step 5: Solve for x
    x = 15,554,895,243,477,858/144,229,910.64
  6. Step 6: Final answer
    x = 107,847,915.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.