Home / 393,608,128.72-543,087,510.60-228,497,676.88

Finding the Fourth Proportional to 393,608,128.72, 543,087,510.60 and 228,497,676.88

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Solution

The fourth proportional to 393,608,128.72, 543,087,510.60 and 228,497,676.88 is: 315,273,556.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,608,128.72 : 543,087,510.60 = 228,497,676.88 : x
  2. Step 2: Convert to fraction form
    393,608,128.72/543,087,510.60 = 228,497,676.88/x
  3. Step 3: Cross multiply
    393,608,128.72x = 543,087,510.60 × 228,497,676.88
  4. Step 4: Simplify right side
    393,608,128.72x = 124,094,234,514,642,384
  5. Step 5: Solve for x
    x = 124,094,234,514,642,384/393,608,128.72
  6. Step 6: Final answer
    x = 315,273,556.26

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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.