Home / 120,273,036.53-165,976,790.37-65,268,893.03

Finding the Fourth Proportional to 120,273,036.53, 165,976,790.37 and 65,268,893.03

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Solution

The fourth proportional to 120,273,036.53, 165,976,790.37 and 65,268,893.03 is: 90,071,072.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,273,036.53 : 165,976,790.37 = 65,268,893.03 : x
  2. Step 2: Convert to fraction form
    120,273,036.53/165,976,790.37 = 65,268,893.03/x
  3. Step 3: Cross multiply
    120,273,036.53x = 165,976,790.37 × 65,268,893.03
  4. Step 4: Simplify right side
    120,273,036.53x = 10,833,121,376,374,034
  5. Step 5: Solve for x
    x = 10,833,121,376,374,034/120,273,036.53
  6. Step 6: Final answer
    x = 90,071,072.36

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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.