Home / 13,105,728.70-19,658,593.05-11,830,270.30

Finding the Fourth Proportional to 13,105,728.70, 19,658,593.05 and 11,830,270.30

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Solution

The fourth proportional to 13,105,728.70, 19,658,593.05 and 11,830,270.30 is: 17,745,405.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,105,728.70 : 19,658,593.05 = 11,830,270.30 : x
  2. Step 2: Convert to fraction form
    13,105,728.70/19,658,593.05 = 11,830,270.30/x
  3. Step 3: Cross multiply
    13,105,728.70x = 19,658,593.05 × 11,830,270.30
  4. Step 4: Simplify right side
    13,105,728.70x = 232,566,469,499,201.44
  5. Step 5: Solve for x
    x = 232,566,469,499,201.44/13,105,728.70
  6. Step 6: Final answer
    x = 17,745,405.45

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Double scale
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Similar ratio
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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.