Home / 26,299,285.70-39,448,928.55-19,921,993.70

Finding the Fourth Proportional to 26,299,285.70, 39,448,928.55 and 19,921,993.70

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Solution

The fourth proportional to 26,299,285.70, 39,448,928.55 and 19,921,993.70 is: 29,882,990.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,299,285.70 : 39,448,928.55 = 19,921,993.70 : x
  2. Step 2: Convert to fraction form
    26,299,285.70/39,448,928.55 = 19,921,993.70/x
  3. Step 3: Cross multiply
    26,299,285.70x = 39,448,928.55 × 19,921,993.70
  4. Step 4: Simplify right side
    26,299,285.70x = 785,901,306,044,850
  5. Step 5: Solve for x
    x = 785,901,306,044,850/26,299,285.70
  6. Step 6: Final answer
    x = 29,882,990.55

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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.