Home / 14,040,805.40-21,061,208.10-9,785,778.20

Finding the Fourth Proportional to 14,040,805.40, 21,061,208.10 and 9,785,778.20

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Solution

The fourth proportional to 14,040,805.40, 21,061,208.10 and 9,785,778.20 is: 14,678,667.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,040,805.40 : 21,061,208.10 = 9,785,778.20 : x
  2. Step 2: Convert to fraction form
    14,040,805.40/21,061,208.10 = 9,785,778.20/x
  3. Step 3: Cross multiply
    14,040,805.40x = 21,061,208.10 × 9,785,778.20
  4. Step 4: Simplify right side
    14,040,805.40x = 206,100,311,090,643.41
  5. Step 5: Solve for x
    x = 206,100,311,090,643.41/14,040,805.40
  6. Step 6: Final answer
    x = 14,678,667.30

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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.