Home / 209,452,033.76-289,043,792.88-121,397,107.42

Finding the Fourth Proportional to 209,452,033.76, 289,043,792.88 and 121,397,107.42

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Solution

The fourth proportional to 209,452,033.76, 289,043,792.88 and 121,397,107.42 is: 167,528,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,452,033.76 : 289,043,792.88 = 121,397,107.42 : x
  2. Step 2: Convert to fraction form
    209,452,033.76/289,043,792.88 = 121,397,107.42/x
  3. Step 3: Cross multiply
    209,452,033.76x = 289,043,792.88 × 121,397,107.42
  4. Step 4: Simplify right side
    209,452,033.76x = 35,089,080,373,840,928
  5. Step 5: Solve for x
    x = 35,089,080,373,840,928/209,452,033.76
  6. Step 6: Final answer
    x = 167,528,000.30

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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.