Home / 13,190,410.20-19,785,615.30-9,789,187.80

Finding the Fourth Proportional to 13,190,410.20, 19,785,615.30 and 9,789,187.80

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Solution

The fourth proportional to 13,190,410.20, 19,785,615.30 and 9,789,187.80 is: 14,683,781.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,190,410.20 : 19,785,615.30 = 9,789,187.80 : x
  2. Step 2: Convert to fraction form
    13,190,410.20/19,785,615.30 = 9,789,187.80/x
  3. Step 3: Cross multiply
    13,190,410.20x = 19,785,615.30 × 9,789,187.80
  4. Step 4: Simplify right side
    13,190,410.20x = 193,685,103,910,253.38
  5. Step 5: Solve for x
    x = 193,685,103,910,253.38/13,190,410.20
  6. Step 6: Final answer
    x = 14,683,781.70

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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.