Home / 263,685,863.16-395,490,293.96-76,889,610.72

Finding the Fourth Proportional to 263,685,863.16, 395,490,293.96 and 76,889,610.72

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Solution

The fourth proportional to 263,685,863.16, 395,490,293.96 and 76,889,610.72 is: 115,323,189.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,685,863.16 : 395,490,293.96 = 76,889,610.72 : x
  2. Step 2: Convert to fraction form
    263,685,863.16/395,490,293.96 = 76,889,610.72/x
  3. Step 3: Cross multiply
    263,685,863.16x = 395,490,293.96 × 76,889,610.72
  4. Step 4: Simplify right side
    263,685,863.16x = 30,409,094,746,122,764
  5. Step 5: Solve for x
    x = 30,409,094,746,122,764/263,685,863.16
  6. Step 6: Final answer
    x = 115,323,189.43

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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.