Home / 13,123,553.80-19,685,330.70-11,564,660.20

Finding the Fourth Proportional to 13,123,553.80, 19,685,330.70 and 11,564,660.20

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Solution

The fourth proportional to 13,123,553.80, 19,685,330.70 and 11,564,660.20 is: 17,346,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123,553.80 : 19,685,330.70 = 11,564,660.20 : x
  2. Step 2: Convert to fraction form
    13,123,553.80/19,685,330.70 = 11,564,660.20/x
  3. Step 3: Cross multiply
    13,123,553.80x = 19,685,330.70 × 11,564,660.20
  4. Step 4: Simplify right side
    13,123,553.80x = 227,654,160,470,128.12
  5. Step 5: Solve for x
    x = 227,654,160,470,128.12/13,123,553.80
  6. Step 6: Final answer
    x = 17,346,990.30

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Double scale
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Similar ratio
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1.5x scale

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.