Home / 7,912,760.76-11,868,784.47-3,299,847.39

Finding the Fourth Proportional to 7,912,760.76, 11,868,784.47 and 3,299,847.39

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Solution

The fourth proportional to 7,912,760.76, 11,868,784.47 and 3,299,847.39 is: 4,949,622.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,912,760.76 : 11,868,784.47 = 3,299,847.39 : x
  2. Step 2: Convert to fraction form
    7,912,760.76/11,868,784.47 = 3,299,847.39/x
  3. Step 3: Cross multiply
    7,912,760.76x = 11,868,784.47 × 3,299,847.39
  4. Step 4: Simplify right side
    7,912,760.76x = 39,165,177,455,802.04
  5. Step 5: Solve for x
    x = 39,165,177,455,802.04/7,912,760.76
  6. Step 6: Final answer
    x = 4,949,622.34

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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.