Home / 262,290,004.80-393,435,007.20-80,513,563.20

Finding the Fourth Proportional to 262,290,004.80, 393,435,007.20 and 80,513,563.20

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Solution

The fourth proportional to 262,290,004.80, 393,435,007.20 and 80,513,563.20 is: 120,770,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,290,004.80 : 393,435,007.20 = 80,513,563.20 : x
  2. Step 2: Convert to fraction form
    262,290,004.80/393,435,007.20 = 80,513,563.20/x
  3. Step 3: Cross multiply
    262,290,004.80x = 393,435,007.20 × 80,513,563.20
  4. Step 4: Simplify right side
    262,290,004.80x = 31,676,854,317,289,656
  5. Step 5: Solve for x
    x = 31,676,854,317,289,656/262,290,004.80
  6. Step 6: Final answer
    x = 120,770,344.80

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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.