Home / 30,670,471.13-42,324,568.97-16,919,431.61

Finding the Fourth Proportional to 30,670,471.13, 42,324,568.97 and 16,919,431.61

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Solution

The fourth proportional to 30,670,471.13, 42,324,568.97 and 16,919,431.61 is: 23,348,439.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,670,471.13 : 42,324,568.97 = 16,919,431.61 : x
  2. Step 2: Convert to fraction form
    30,670,471.13/42,324,568.97 = 16,919,431.61/x
  3. Step 3: Cross multiply
    30,670,471.13x = 42,324,568.97 × 16,919,431.61
  4. Step 4: Simplify right side
    30,670,471.13x = 716,107,649,814,423.25
  5. Step 5: Solve for x
    x = 716,107,649,814,423.25/30,670,471.13
  6. Step 6: Final answer
    x = 23,348,439.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.