Home / 20,190,690.30-30,286,035.45-9,404,406.30

Finding the Fourth Proportional to 20,190,690.30, 30,286,035.45 and 9,404,406.30

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Solution

The fourth proportional to 20,190,690.30, 30,286,035.45 and 9,404,406.30 is: 14,106,609.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190,690.30 : 30,286,035.45 = 9,404,406.30 : x
  2. Step 2: Convert to fraction form
    20,190,690.30/30,286,035.45 = 9,404,406.30/x
  3. Step 3: Cross multiply
    20,190,690.30x = 30,286,035.45 × 9,404,406.30
  4. Step 4: Simplify right side
    20,190,690.30x = 284,822,182,588,003.38
  5. Step 5: Solve for x
    x = 284,822,182,588,003.38/20,190,690.30
  6. Step 6: Final answer
    x = 14,106,609.45

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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.