Home / 8,513,610.40-12,753,826.80-5,137,789.60

Finding the Fourth Proportional to 8,513,610.40, 12,753,826.80 and 5,137,789.60

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Solution

The fourth proportional to 8,513,610.40, 12,753,826.80 and 5,137,789.60 is: 7,696,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,513,610.40 : 12,753,826.80 = 5,137,789.60 : x
  2. Step 2: Convert to fraction form
    8,513,610.40/12,753,826.80 = 5,137,789.60/x
  3. Step 3: Cross multiply
    8,513,610.40x = 12,753,826.80 × 5,137,789.60
  4. Step 4: Simplify right side
    8,513,610.40x = 65,526,478,693,241.28
  5. Step 5: Solve for x
    x = 65,526,478,693,241.28/8,513,610.40
  6. Step 6: Final answer
    x = 7,696,673.40

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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.