Home / 7,438,276.80-11,145,605.40-4,910,979.60

Finding the Fourth Proportional to 7,438,276.80, 11,145,605.40 and 4,910,979.60

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Solution

The fourth proportional to 7,438,276.80, 11,145,605.40 and 4,910,979.60 is: 7,358,672.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,438,276.80 : 11,145,605.40 = 4,910,979.60 : x
  2. Step 2: Convert to fraction form
    7,438,276.80/11,145,605.40 = 4,910,979.60/x
  3. Step 3: Cross multiply
    7,438,276.80x = 11,145,605.40 × 4,910,979.60
  4. Step 4: Simplify right side
    7,438,276.80x = 54,735,840,749,049.84
  5. Step 5: Solve for x
    x = 54,735,840,749,049.84/7,438,276.80
  6. Step 6: Final answer
    x = 7,358,672.21

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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.