Home / 144,229,909.64-199,037,968.32-78,150,390.44

Finding the Fourth Proportional to 144,229,909.64, 199,037,968.32 and 78,150,390.44

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Solution

The fourth proportional to 144,229,909.64, 199,037,968.32 and 78,150,390.44 is: 107,847,914.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,229,909.64 : 199,037,968.32 = 78,150,390.44 : x
  2. Step 2: Convert to fraction form
    144,229,909.64/199,037,968.32 = 78,150,390.44/x
  3. Step 3: Cross multiply
    144,229,909.64x = 199,037,968.32 × 78,150,390.44
  4. Step 4: Simplify right side
    144,229,909.64x = 15,554,894,936,592,350
  5. Step 5: Solve for x
    x = 15,554,894,936,592,350/144,229,909.64
  6. Step 6: Final answer
    x = 107,847,914.32

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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.