Home / 13,431,332.70-20,146,999.05-9,680,190.30

Finding the Fourth Proportional to 13,431,332.70, 20,146,999.05 and 9,680,190.30

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Solution

The fourth proportional to 13,431,332.70, 20,146,999.05 and 9,680,190.30 is: 14,520,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,431,332.70 : 20,146,999.05 = 9,680,190.30 : x
  2. Step 2: Convert to fraction form
    13,431,332.70/20,146,999.05 = 9,680,190.30/x
  3. Step 3: Cross multiply
    13,431,332.70x = 20,146,999.05 × 9,680,190.30
  4. Step 4: Simplify right side
    13,431,332.70x = 195,026,784,777,919.25
  5. Step 5: Solve for x
    x = 195,026,784,777,919.25/13,431,332.70
  6. Step 6: Final answer
    x = 14,520,285.45

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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.