Home / 13,618,606.12-18,795,379.14-7,819,205.80

Finding the Fourth Proportional to 13,618,606.12, 18,795,379.14 and 7,819,205.80

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Solution

The fourth proportional to 13,618,606.12, 18,795,379.14 and 7,819,205.80 is: 10,791,481.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,618,606.12 : 18,795,379.14 = 7,819,205.80 : x
  2. Step 2: Convert to fraction form
    13,618,606.12/18,795,379.14 = 7,819,205.80/x
  3. Step 3: Cross multiply
    13,618,606.12x = 18,795,379.14 × 7,819,205.80
  4. Step 4: Simplify right side
    13,618,606.12x = 146,964,937,584,687
  5. Step 5: Solve for x
    x = 146,964,937,584,687/13,618,606.12
  6. Step 6: Final answer
    x = 10,791,481.62

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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.