Home / 144,229,911.64-199,037,971.08-78,150,392.44

Finding the Fourth Proportional to 144,229,911.64, 199,037,971.08 and 78,150,392.44

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Solution

The fourth proportional to 144,229,911.64, 199,037,971.08 and 78,150,392.44 is: 107,847,917.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,229,911.64 : 199,037,971.08 = 78,150,392.44 : x
  2. Step 2: Convert to fraction form
    144,229,911.64/199,037,971.08 = 78,150,392.44/x
  3. Step 3: Cross multiply
    144,229,911.64x = 199,037,971.08 × 78,150,392.44
  4. Step 4: Simplify right side
    144,229,911.64x = 15,554,895,550,363,372
  5. Step 5: Solve for x
    x = 15,554,895,550,363,372/144,229,911.64
  6. Step 6: Final answer
    x = 107,847,917.08

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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.