Home / 13,287,193.20-19,930,789.80-8,500,287.60

Finding the Fourth Proportional to 13,287,193.20, 19,930,789.80 and 8,500,287.60

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Solution

The fourth proportional to 13,287,193.20, 19,930,789.80 and 8,500,287.60 is: 12,750,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287,193.20 : 19,930,789.80 = 8,500,287.60 : x
  2. Step 2: Convert to fraction form
    13,287,193.20/19,930,789.80 = 8,500,287.60/x
  3. Step 3: Cross multiply
    13,287,193.20x = 19,930,789.80 × 8,500,287.60
  4. Step 4: Simplify right side
    13,287,193.20x = 169,417,445,395,146.47
  5. Step 5: Solve for x
    x = 169,417,445,395,146.47/13,287,193.20
  6. Step 6: Final answer
    x = 12,750,431.40

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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.