Home / 121,618,755.44-167,831,809.08-65,863,723.52

Finding the Fourth Proportional to 121,618,755.44, 167,831,809.08 and 65,863,723.52

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Solution

The fourth proportional to 121,618,755.44, 167,831,809.08 and 65,863,723.52 is: 90,890,815.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,618,755.44 : 167,831,809.08 = 65,863,723.52 : x
  2. Step 2: Convert to fraction form
    121,618,755.44/167,831,809.08 = 65,863,723.52/x
  3. Step 3: Cross multiply
    121,618,755.44x = 167,831,809.08 × 65,863,723.52
  4. Step 4: Simplify right side
    121,618,755.44x = 11,054,027,871,106,546
  5. Step 5: Solve for x
    x = 11,054,027,871,106,546/121,618,755.44
  6. Step 6: Final answer
    x = 90,890,815.57

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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.