Home / 11,854,214.40-17,790,316.80-7,809,321.60

Finding the Fourth Proportional to 11,854,214.40, 17,790,316.80 and 7,809,321.60

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Solution

The fourth proportional to 11,854,214.40, 17,790,316.80 and 7,809,321.60 is: 11,719,908.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,854,214.40 : 17,790,316.80 = 7,809,321.60 : x
  2. Step 2: Convert to fraction form
    11,854,214.40/17,790,316.80 = 7,809,321.60/x
  3. Step 3: Cross multiply
    11,854,214.40x = 17,790,316.80 × 7,809,321.60
  4. Step 4: Simplify right side
    11,854,214.40x = 138,930,305,257,082.88
  5. Step 5: Solve for x
    x = 138,930,305,257,082.88/11,854,214.40
  6. Step 6: Final answer
    x = 11,719,908.26

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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.