Home / 231,903,404.78-320,034,491.64-136,516,701.96

Finding the Fourth Proportional to 231,903,404.78, 320,034,491.64 and 136,516,701.96

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Solution

The fourth proportional to 231,903,404.78, 320,034,491.64 and 136,516,701.96 is: 188,397,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,903,404.78 : 320,034,491.64 = 136,516,701.96 : x
  2. Step 2: Convert to fraction form
    231,903,404.78/320,034,491.64 = 136,516,701.96/x
  3. Step 3: Cross multiply
    231,903,404.78x = 320,034,491.64 × 136,516,701.96
  4. Step 4: Simplify right side
    231,903,404.78x = 43,690,053,312,137,992
  5. Step 5: Solve for x
    x = 43,690,053,312,137,992/231,903,404.78
  6. Step 6: Final answer
    x = 188,397,636.31

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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.