Home / 143,514,874.33-215,097,421.82-74,389,568.45

Finding the Fourth Proportional to 143,514,874.33, 215,097,421.82 and 74,389,568.45

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Solution

The fourth proportional to 143,514,874.33, 215,097,421.82 and 74,389,568.45 is: 111,493,700.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,514,874.33 : 215,097,421.82 = 74,389,568.45 : x
  2. Step 2: Convert to fraction form
    143,514,874.33/215,097,421.82 = 74,389,568.45/x
  3. Step 3: Cross multiply
    143,514,874.33x = 215,097,421.82 × 74,389,568.45
  4. Step 4: Simplify right side
    143,514,874.33x = 16,001,004,383,897,414
  5. Step 5: Solve for x
    x = 16,001,004,383,897,414/143,514,874.33
  6. Step 6: Final answer
    x = 111,493,700.28

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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.