Home / 12,203,478.40-18,305,217.60-9,935,996.80

Finding the Fourth Proportional to 12,203,478.40, 18,305,217.60 and 9,935,996.80

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Solution

The fourth proportional to 12,203,478.40, 18,305,217.60 and 9,935,996.80 is: 14,903,995.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203,478.40 : 18,305,217.60 = 9,935,996.80 : x
  2. Step 2: Convert to fraction form
    12,203,478.40/18,305,217.60 = 9,935,996.80/x
  3. Step 3: Cross multiply
    12,203,478.40x = 18,305,217.60 × 9,935,996.80
  4. Step 4: Simplify right side
    12,203,478.40x = 181,880,583,496,903.72
  5. Step 5: Solve for x
    x = 181,880,583,496,903.72/12,203,478.40
  6. Step 6: Final answer
    x = 14,903,995.20

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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.