Home / 809,317,500.76-1,213,979,400.42-195,900,742.36

Finding the Fourth Proportional to 809,317,500.76, 1,213,979,400.42 and 195,900,742.36

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Solution

The fourth proportional to 809,317,500.76, 1,213,979,400.42 and 195,900,742.36 is: 293,851,875.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,317,500.76 : 1,213,979,400.42 = 195,900,742.36 : x
  2. Step 2: Convert to fraction form
    809,317,500.76/1,213,979,400.42 = 195,900,742.36/x
  3. Step 3: Cross multiply
    809,317,500.76x = 1,213,979,400.42 × 195,900,742.36
  4. Step 4: Simplify right side
    809,317,500.76x = 237,819,465,752,025,728
  5. Step 5: Solve for x
    x = 237,819,465,752,025,728/809,317,500.76
  6. Step 6: Final answer
    x = 293,851,875.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.