Home / 5,120,121.08-7,680,179.18-1,525,796.30

Finding the Fourth Proportional to 5,120,121.08, 7,680,179.18 and 1,525,796.30

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Solution

The fourth proportional to 5,120,121.08, 7,680,179.18 and 1,525,796.30 is: 2,288,693.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,121.08 : 7,680,179.18 = 1,525,796.30 : x
  2. Step 2: Convert to fraction form
    5,120,121.08/7,680,179.18 = 1,525,796.30/x
  3. Step 3: Cross multiply
    5,120,121.08x = 7,680,179.18 × 1,525,796.30
  4. Step 4: Simplify right side
    5,120,121.08x = 11,718,388,976,181.03
  5. Step 5: Solve for x
    x = 11,718,388,976,181.03/5,120,121.08
  6. Step 6: Final answer
    x = 2,288,693.72

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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.