Home / 121,618,745.82-167,831,794.89-65,863,713.20

Finding the Fourth Proportional to 121,618,745.82, 167,831,794.89 and 65,863,713.20

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Solution

The fourth proportional to 121,618,745.82, 167,831,794.89 and 65,863,713.20 is: 90,890,800.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,618,745.82 : 167,831,794.89 = 65,863,713.20 : x
  2. Step 2: Convert to fraction form
    121,618,745.82/167,831,794.89 = 65,863,713.20/x
  3. Step 3: Cross multiply
    121,618,745.82x = 167,831,794.89 × 65,863,713.20
  4. Step 4: Simplify right side
    121,618,745.82x = 11,054,025,203,637,026
  5. Step 5: Solve for x
    x = 11,054,025,203,637,026/121,618,745.82
  6. Step 6: Final answer
    x = 90,890,800.83

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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.