Home / 307,842,212.80-461,763,319.20-280,072,561.60

Finding the Fourth Proportional to 307,842,212.80, 461,763,319.20 and 280,072,561.60

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Solution

The fourth proportional to 307,842,212.80, 461,763,319.20 and 280,072,561.60 is: 420,108,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,842,212.80 : 461,763,319.20 = 280,072,561.60 : x
  2. Step 2: Convert to fraction form
    307,842,212.80/461,763,319.20 = 280,072,561.60/x
  3. Step 3: Cross multiply
    307,842,212.80x = 461,763,319.20 × 280,072,561.60
  4. Step 4: Simplify right side
    307,842,212.80x = 129,327,235,661,262,464
  5. Step 5: Solve for x
    x = 129,327,235,661,262,464/307,842,212.80
  6. Step 6: Final answer
    x = 420,108,842.40

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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.