Home / 121,720,782,202.48-167,904,891,132.39-75,915,534,066.82

Finding the Fourth Proportional to 121,720,782,202.48, 167,904,891,132.39 and 75,915,534,066.82

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Solution

The fourth proportional to 121,720,782,202.48, 167,904,891,132.39 and 75,915,534,066.82 is: 104,719,911,030.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,720,782,202.48 : 167,904,891,132.39 = 75,915,534,066.82 : x
  2. Step 2: Convert to fraction form
    121,720,782,202.48/167,904,891,132.39 = 75,915,534,066.82/x
  3. Step 3: Cross multiply
    121,720,782,202.48x = 167,904,891,132.39 × 75,915,534,066.82
  4. Step 4: Simplify right side
    121,720,782,202.48x = 12,746,589,482,746,321,567,744
  5. Step 5: Solve for x
    x = 12,746,589,482,746,321,567,744/121,720,782,202.48
  6. Step 6: Final answer
    x = 104,719,911,030.01

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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.