Home / 20,771,213.44-31,156,820.22-7,997,733.76

Finding the Fourth Proportional to 20,771,213.44, 31,156,820.22 and 7,997,733.76

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Solution

The fourth proportional to 20,771,213.44, 31,156,820.22 and 7,997,733.76 is: 11,996,600.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,771,213.44 : 31,156,820.22 = 7,997,733.76 : x
  2. Step 2: Convert to fraction form
    20,771,213.44/31,156,820.22 = 7,997,733.76/x
  3. Step 3: Cross multiply
    20,771,213.44x = 31,156,820.22 × 7,997,733.76
  4. Step 4: Simplify right side
    20,771,213.44x = 249,183,952,927,744.62
  5. Step 5: Solve for x
    x = 249,183,952,927,744.62/20,771,213.44
  6. Step 6: Final answer
    x = 11,996,600.66

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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.