Home / 121,509,185.28-167,682,675.68-66,505,041.80

Finding the Fourth Proportional to 121,509,185.28, 167,682,675.68 and 66,505,041.80

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Solution

The fourth proportional to 121,509,185.28, 167,682,675.68 and 66,505,041.80 is: 91,776,957.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,509,185.28 : 167,682,675.68 = 66,505,041.80 : x
  2. Step 2: Convert to fraction form
    121,509,185.28/167,682,675.68 = 66,505,041.80/x
  3. Step 3: Cross multiply
    121,509,185.28x = 167,682,675.68 × 66,505,041.80
  4. Step 4: Simplify right side
    121,509,185.28x = 11,151,743,355,234,244
  5. Step 5: Solve for x
    x = 11,151,743,355,234,244/121,509,185.28
  6. Step 6: Final answer
    x = 91,776,957.68

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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.