Home / 69,881,438.80-104,821,174.05-31,542,891.40

Finding the Fourth Proportional to 69,881,438.80, 104,821,174.05 and 31,542,891.40

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Solution

The fourth proportional to 69,881,438.80, 104,821,174.05 and 31,542,891.40 is: 47,313,892.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,881,438.80 : 104,821,174.05 = 31,542,891.40 : x
  2. Step 2: Convert to fraction form
    69,881,438.80/104,821,174.05 = 31,542,891.40/x
  3. Step 3: Cross multiply
    69,881,438.80x = 104,821,174.05 × 31,542,891.40
  4. Step 4: Simplify right side
    69,881,438.80x = 3,306,362,909,479,648
  5. Step 5: Solve for x
    x = 3,306,362,909,479,648/69,881,438.80
  6. Step 6: Final answer
    x = 47,313,892.88

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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.