Home / 121,129,479.36-167,159,361.60-68,918,513.76

Finding the Fourth Proportional to 121,129,479.36, 167,159,361.60 and 68,918,513.76

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Solution

The fourth proportional to 121,129,479.36, 167,159,361.60 and 68,918,513.76 is: 95,107,935.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,129,479.36 : 167,159,361.60 = 68,918,513.76 : x
  2. Step 2: Convert to fraction form
    121,129,479.36/167,159,361.60 = 68,918,513.76/x
  3. Step 3: Cross multiply
    121,129,479.36x = 167,159,361.60 × 68,918,513.76
  4. Step 4: Simplify right side
    121,129,479.36x = 11,520,374,762,542,416
  5. Step 5: Solve for x
    x = 11,520,374,762,542,416/121,129,479.36
  6. Step 6: Final answer
    x = 95,107,935.93

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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.