Home / 12,632,142.70-18,920,220.45-9,783,016.30

Finding the Fourth Proportional to 12,632,142.70, 18,920,220.45 and 9,783,016.30

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Solution

The fourth proportional to 12,632,142.70, 18,920,220.45 and 9,783,016.30 is: 14,652,844.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,632,142.70 : 18,920,220.45 = 9,783,016.30 : x
  2. Step 2: Convert to fraction form
    12,632,142.70/18,920,220.45 = 9,783,016.30/x
  3. Step 3: Cross multiply
    12,632,142.70x = 18,920,220.45 × 9,783,016.30
  4. Step 4: Simplify right side
    12,632,142.70x = 185,096,825,061,943.34
  5. Step 5: Solve for x
    x = 185,096,825,061,943.34/12,632,142.70
  6. Step 6: Final answer
    x = 14,652,844.69

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Double scale
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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.