Home / 12,947,202.68-17,865,867.60-7,145,609.85

Finding the Fourth Proportional to 12,947,202.68, 17,865,867.60 and 7,145,609.85

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Solution

The fourth proportional to 12,947,202.68, 17,865,867.60 and 7,145,609.85 is: 9,860,239.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,202.68 : 17,865,867.60 = 7,145,609.85 : x
  2. Step 2: Convert to fraction form
    12,947,202.68/17,865,867.60 = 7,145,609.85/x
  3. Step 3: Cross multiply
    12,947,202.68x = 17,865,867.60 × 7,145,609.85
  4. Step 4: Simplify right side
    12,947,202.68x = 127,662,519,501,355.86
  5. Step 5: Solve for x
    x = 127,662,519,501,355.86/12,947,202.68
  6. Step 6: Final answer
    x = 9,860,239.52

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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.