Home / 121,720,782,192.88-167,904,891,119.16-75,915,534,057.32

Finding the Fourth Proportional to 121,720,782,192.88, 167,904,891,119.16 and 75,915,534,057.32

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Solution

The fourth proportional to 121,720,782,192.88, 167,904,891,119.16 and 75,915,534,057.32 is: 104,719,911,016.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,720,782,192.88 : 167,904,891,119.16 = 75,915,534,057.32 : x
  2. Step 2: Convert to fraction form
    121,720,782,192.88/167,904,891,119.16 = 75,915,534,057.32/x
  3. Step 3: Cross multiply
    121,720,782,192.88x = 167,904,891,119.16 × 75,915,534,057.32
  4. Step 4: Simplify right side
    121,720,782,192.88x = 12,746,589,480,147,535,003,648
  5. Step 5: Solve for x
    x = 12,746,589,480,147,535,003,648/121,720,782,192.88
  6. Step 6: Final answer
    x = 104,719,911,016.91

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1.5x scale

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.