Home / 231,139,721-346,828,781.58-108,330,514.76

Finding the Fourth Proportional to 231,139,721, 346,828,781.58 and 108,330,514.76

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Solution

The fourth proportional to 231,139,721, 346,828,781.58 and 108,330,514.76 is: 162,551,638.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,139,721 : 346,828,781.58 = 108,330,514.76 : x
  2. Step 2: Convert to fraction form
    231,139,721/346,828,781.58 = 108,330,514.76/x
  3. Step 3: Cross multiply
    231,139,721x = 346,828,781.58 × 108,330,514.76
  4. Step 4: Simplify right side
    231,139,721x = 37,572,140,442,145,008
  5. Step 5: Solve for x
    x = 37,572,140,442,145,008/231,139,721
  6. Step 6: Final answer
    x = 162,551,638.81

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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.