Home / 8,209,821.20-12,309,515.64-7,200,968.96

Finding the Fourth Proportional to 8,209,821.20, 12,309,515.64 and 7,200,968.96

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Solution

The fourth proportional to 8,209,821.20, 12,309,515.64 and 7,200,968.96 is: 10,796,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,209,821.20 : 12,309,515.64 = 7,200,968.96 : x
  2. Step 2: Convert to fraction form
    8,209,821.20/12,309,515.64 = 7,200,968.96/x
  3. Step 3: Cross multiply
    8,209,821.20x = 12,309,515.64 × 7,200,968.96
  4. Step 4: Simplify right side
    8,209,821.20x = 88,640,440,036,274.53
  5. Step 5: Solve for x
    x = 88,640,440,036,274.53/8,209,821.20
  6. Step 6: Final answer
    x = 10,796,878.26

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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.