Home / 121,618,743.57-167,831,791.80-65,863,710.93

Finding the Fourth Proportional to 121,618,743.57, 167,831,791.80 and 65,863,710.93

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Solution

The fourth proportional to 121,618,743.57, 167,831,791.80 and 65,863,710.93 is: 90,890,797.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,618,743.57 : 167,831,791.80 = 65,863,710.93 : x
  2. Step 2: Convert to fraction form
    121,618,743.57/167,831,791.80 = 65,863,710.93/x
  3. Step 3: Cross multiply
    121,618,743.57x = 167,831,791.80 × 65,863,710.93
  4. Step 4: Simplify right side
    121,618,743.57x = 11,054,024,620,361,524
  5. Step 5: Solve for x
    x = 11,054,024,620,361,524/121,618,743.57
  6. Step 6: Final answer
    x = 90,890,797.72

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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.