Home / 208,313,216.20-312,150,959.70-196,834,090.60

Finding the Fourth Proportional to 208,313,216.20, 312,150,959.70 and 196,834,090.60

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Solution

The fourth proportional to 208,313,216.20, 312,150,959.70 and 196,834,090.60 is: 294,949,842.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,313,216.20 : 312,150,959.70 = 196,834,090.60 : x
  2. Step 2: Convert to fraction form
    208,313,216.20/312,150,959.70 = 196,834,090.60/x
  3. Step 3: Cross multiply
    208,313,216.20x = 312,150,959.70 × 196,834,090.60
  4. Step 4: Simplify right side
    208,313,216.20x = 61,441,950,282,466,744
  5. Step 5: Solve for x
    x = 61,441,950,282,466,744/208,313,216.20
  6. Step 6: Final answer
    x = 294,949,842.37

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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.