Home / 7,345,120.80-11,017,681.20-5,455,552.80

Finding the Fourth Proportional to 7,345,120.80, 11,017,681.20 and 5,455,552.80

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Solution

The fourth proportional to 7,345,120.80, 11,017,681.20 and 5,455,552.80 is: 8,183,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345,120.80 : 11,017,681.20 = 5,455,552.80 : x
  2. Step 2: Convert to fraction form
    7,345,120.80/11,017,681.20 = 5,455,552.80/x
  3. Step 3: Cross multiply
    7,345,120.80x = 11,017,681.20 × 5,455,552.80
  4. Step 4: Simplify right side
    7,345,120.80x = 60,107,541,520,167.35
  5. Step 5: Solve for x
    x = 60,107,541,520,167.35/7,345,120.80
  6. Step 6: Final answer
    x = 8,183,329.20

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1.5x scale

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.