Home / 7,887,321.70-11,830,982.55-3,906,009.70

Finding the Fourth Proportional to 7,887,321.70, 11,830,982.55 and 3,906,009.70

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Solution

The fourth proportional to 7,887,321.70, 11,830,982.55 and 3,906,009.70 is: 5,859,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887,321.70 : 11,830,982.55 = 3,906,009.70 : x
  2. Step 2: Convert to fraction form
    7,887,321.70/11,830,982.55 = 3,906,009.70/x
  3. Step 3: Cross multiply
    7,887,321.70x = 11,830,982.55 × 3,906,009.70
  4. Step 4: Simplify right side
    7,887,321.70x = 46,211,932,600,830.74
  5. Step 5: Solve for x
    x = 46,211,932,600,830.74/7,887,321.70
  6. Step 6: Final answer
    x = 5,859,014.55

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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.