Home / 289,171,720.31-399,056,974.01-165,412,397.43

Finding the Fourth Proportional to 289,171,720.31, 399,056,974.01 and 165,412,397.43

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Solution

The fourth proportional to 289,171,720.31, 399,056,974.01 and 165,412,397.43 is: 228,269,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,171,720.31 : 399,056,974.01 = 165,412,397.43 : x
  2. Step 2: Convert to fraction form
    289,171,720.31/399,056,974.01 = 165,412,397.43/x
  3. Step 3: Cross multiply
    289,171,720.31x = 399,056,974.01 × 165,412,397.43
  4. Step 4: Simplify right side
    289,171,720.31x = 66,008,970,781,948,544
  5. Step 5: Solve for x
    x = 66,008,970,781,948,544/289,171,720.31
  6. Step 6: Final answer
    x = 228,269,108.45

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.