Home / 121,720,782,174.42-167,904,891,093.84-75,915,534,038.88

Finding the Fourth Proportional to 121,720,782,174.42, 167,904,891,093.84 and 75,915,534,038.88

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Solution

The fourth proportional to 121,720,782,174.42, 167,904,891,093.84 and 75,915,534,038.88 is: 104,719,910,991.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,720,782,174.42 : 167,904,891,093.84 = 75,915,534,038.88 : x
  2. Step 2: Convert to fraction form
    121,720,782,174.42/167,904,891,093.84 = 75,915,534,038.88/x
  3. Step 3: Cross multiply
    121,720,782,174.42x = 167,904,891,093.84 × 75,915,534,038.88
  4. Step 4: Simplify right side
    121,720,782,174.42x = 12,746,589,475,128,851,038,208
  5. Step 5: Solve for x
    x = 12,746,589,475,128,851,038,208/121,720,782,174.42
  6. Step 6: Final answer
    x = 104,719,910,991.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.