Home / 7,984,147.20-11,976,220.80-2,934,801.60

Finding the Fourth Proportional to 7,984,147.20, 11,976,220.80 and 2,934,801.60

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Solution

The fourth proportional to 7,984,147.20, 11,976,220.80 and 2,934,801.60 is: 4,402,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984,147.20 : 11,976,220.80 = 2,934,801.60 : x
  2. Step 2: Convert to fraction form
    7,984,147.20/11,976,220.80 = 2,934,801.60/x
  3. Step 3: Cross multiply
    7,984,147.20x = 11,976,220.80 × 2,934,801.60
  4. Step 4: Simplify right side
    7,984,147.20x = 35,147,831,965,793.29
  5. Step 5: Solve for x
    x = 35,147,831,965,793.29/7,984,147.20
  6. Step 6: Final answer
    x = 4,402,202.40

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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.