Home / 121,923,003.96-168,253,833.29-66,168,409.64

Finding the Fourth Proportional to 121,923,003.96, 168,253,833.29 and 66,168,409.64

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Solution

The fourth proportional to 121,923,003.96, 168,253,833.29 and 66,168,409.64 is: 91,312,452.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,923,003.96 : 168,253,833.29 = 66,168,409.64 : x
  2. Step 2: Convert to fraction form
    121,923,003.96/168,253,833.29 = 66,168,409.64/x
  3. Step 3: Cross multiply
    121,923,003.96x = 168,253,833.29 × 66,168,409.64
  4. Step 4: Simplify right side
    121,923,003.96x = 11,133,088,563,460,878
  5. Step 5: Solve for x
    x = 11,133,088,563,460,878/121,923,003.96
  6. Step 6: Final answer
    x = 91,312,452.96

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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.