Home / 7,993,987.85-11,990,870.37-1,928,668.70

Finding the Fourth Proportional to 7,993,987.85, 11,990,870.37 and 1,928,668.70

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Solution

The fourth proportional to 7,993,987.85, 11,990,870.37 and 1,928,668.70 is: 2,892,976.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,993,987.85 : 11,990,870.37 = 1,928,668.70 : x
  2. Step 2: Convert to fraction form
    7,993,987.85/11,990,870.37 = 1,928,668.70/x
  3. Step 3: Cross multiply
    7,993,987.85x = 11,990,870.37 × 1,928,668.70
  4. Step 4: Simplify right side
    7,993,987.85x = 23,126,416,308,422.07
  5. Step 5: Solve for x
    x = 23,126,416,308,422.07/7,993,987.85
  6. Step 6: Final answer
    x = 2,892,976.17

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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.