Home / 231,082,743.83-318,926,886.64-143,005,107.74

Finding the Fourth Proportional to 231,082,743.83, 318,926,886.64 and 143,005,107.74

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Solution

The fourth proportional to 231,082,743.83, 318,926,886.64 and 143,005,107.74 is: 197,367,285.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,082,743.83 : 318,926,886.64 = 143,005,107.74 : x
  2. Step 2: Convert to fraction form
    231,082,743.83/318,926,886.64 = 143,005,107.74/x
  3. Step 3: Cross multiply
    231,082,743.83x = 318,926,886.64 × 143,005,107.74
  4. Step 4: Simplify right side
    231,082,743.83x = 45,608,173,785,135,968
  5. Step 5: Solve for x
    x = 45,608,173,785,135,968/231,082,743.83
  6. Step 6: Final answer
    x = 197,367,285.11

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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.