Home / 20,219,445.10-30,329,167.65-11,243,997.10

Finding the Fourth Proportional to 20,219,445.10, 30,329,167.65 and 11,243,997.10

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Solution

The fourth proportional to 20,219,445.10, 30,329,167.65 and 11,243,997.10 is: 16,865,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,445.10 : 30,329,167.65 = 11,243,997.10 : x
  2. Step 2: Convert to fraction form
    20,219,445.10/30,329,167.65 = 11,243,997.10/x
  3. Step 3: Cross multiply
    20,219,445.10x = 30,329,167.65 × 11,243,997.10
  4. Step 4: Simplify right side
    20,219,445.10x = 341,021,073,102,013.81
  5. Step 5: Solve for x
    x = 341,021,073,102,013.81/20,219,445.10
  6. Step 6: Final answer
    x = 16,865,995.65

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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.