Home / 121,933,969.60-168,269,036.96-66,179,387.04

Finding the Fourth Proportional to 121,933,969.60, 168,269,036.96 and 66,179,387.04

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Solution

The fourth proportional to 121,933,969.60, 168,269,036.96 and 66,179,387.04 is: 91,327,640.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,933,969.60 : 168,269,036.96 = 66,179,387.04 : x
  2. Step 2: Convert to fraction form
    121,933,969.60/168,269,036.96 = 66,179,387.04/x
  3. Step 3: Cross multiply
    121,933,969.60x = 168,269,036.96 × 66,179,387.04
  4. Step 4: Simplify right side
    121,933,969.60x = 11,135,941,723,823,906
  5. Step 5: Solve for x
    x = 11,135,941,723,823,906/121,933,969.60
  6. Step 6: Final answer
    x = 91,327,640.36

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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.