Home / 40,800,670.22-61,205,489.22-20,335,541.78

Finding the Fourth Proportional to 40,800,670.22, 61,205,489.22 and 20,335,541.78

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Solution

The fourth proportional to 40,800,670.22, 61,205,489.22 and 20,335,541.78 is: 30,505,547.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,800,670.22 : 61,205,489.22 = 20,335,541.78 : x
  2. Step 2: Convert to fraction form
    40,800,670.22/61,205,489.22 = 20,335,541.78/x
  3. Step 3: Cross multiply
    40,800,670.22x = 61,205,489.22 × 20,335,541.78
  4. Step 4: Simplify right side
    40,800,670.22x = 1,244,646,783,198,649.75
  5. Step 5: Solve for x
    x = 1,244,646,783,198,649.75/40,800,670.22
  6. Step 6: Final answer
    x = 30,505,547.49

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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.