Home / 786,432,676.64-1,179,841,076.88-261,800,764.24

Finding the Fourth Proportional to 786,432,676.64, 1,179,841,076.88 and 261,800,764.24

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Solution

The fourth proportional to 786,432,676.64, 1,179,841,076.88 and 261,800,764.24 is: 392,765,083.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,432,676.64 : 1,179,841,076.88 = 261,800,764.24 : x
  2. Step 2: Convert to fraction form
    786,432,676.64/1,179,841,076.88 = 261,800,764.24/x
  3. Step 3: Cross multiply
    786,432,676.64x = 1,179,841,076.88 × 261,800,764.24
  4. Step 4: Simplify right side
    786,432,676.64x = 308,883,295,608,928,640
  5. Step 5: Solve for x
    x = 308,883,295,608,928,640/786,432,676.64
  6. Step 6: Final answer
    x = 392,765,083.12

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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.