Home / 13,921,285.76-19,211,505.45-7,809,845.48

Finding the Fourth Proportional to 13,921,285.76, 19,211,505.45 and 7,809,845.48

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Solution

The fourth proportional to 13,921,285.76, 19,211,505.45 and 7,809,845.48 is: 10,777,660.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921,285.76 : 19,211,505.45 = 7,809,845.48 : x
  2. Step 2: Convert to fraction form
    13,921,285.76/19,211,505.45 = 7,809,845.48/x
  3. Step 3: Cross multiply
    13,921,285.76x = 19,211,505.45 × 7,809,845.48
  4. Step 4: Simplify right side
    13,921,285.76x = 150,038,889,002,677.88
  5. Step 5: Solve for x
    x = 150,038,889,002,677.88/13,921,285.76
  6. Step 6: Final answer
    x = 10,777,660.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.