Home / 210,947,464.73-291,079,894.86-121,642,707.30

Finding the Fourth Proportional to 210,947,464.73, 291,079,894.86 and 121,642,707.30

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Solution

The fourth proportional to 210,947,464.73, 291,079,894.86 and 121,642,707.30 is: 167,851,016.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,947,464.73 : 291,079,894.86 = 121,642,707.30 : x
  2. Step 2: Convert to fraction form
    210,947,464.73/291,079,894.86 = 121,642,707.30/x
  3. Step 3: Cross multiply
    210,947,464.73x = 291,079,894.86 × 121,642,707.30
  4. Step 4: Simplify right side
    210,947,464.73x = 35,407,746,451,369,756
  5. Step 5: Solve for x
    x = 35,407,746,451,369,756/210,947,464.73
  6. Step 6: Final answer
    x = 167,851,016.83

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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.