Home / 30,612,377.66-42,245,077.38-16,861,341.92

Finding the Fourth Proportional to 30,612,377.66, 42,245,077.38 and 16,861,341.92

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Solution

The fourth proportional to 30,612,377.66, 42,245,077.38 and 16,861,341.92 is: 23,268,649.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,612,377.66 : 42,245,077.38 = 16,861,341.92 : x
  2. Step 2: Convert to fraction form
    30,612,377.66/42,245,077.38 = 16,861,341.92/x
  3. Step 3: Cross multiply
    30,612,377.66x = 42,245,077.38 × 16,861,341.92
  4. Step 4: Simplify right side
    30,612,377.66x = 712,308,694,141,037.88
  5. Step 5: Solve for x
    x = 712,308,694,141,037.88/30,612,377.66
  6. Step 6: Final answer
    x = 23,268,649.76

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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.