Home / 12,693,541.76-17,512,761.84-8,112,505.76

Finding the Fourth Proportional to 12,693,541.76, 17,512,761.84 and 8,112,505.76

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Solution

The fourth proportional to 12,693,541.76, 17,512,761.84 and 8,112,505.76 is: 11,192,493.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,693,541.76 : 17,512,761.84 = 8,112,505.76 : x
  2. Step 2: Convert to fraction form
    12,693,541.76/17,512,761.84 = 8,112,505.76/x
  3. Step 3: Cross multiply
    12,693,541.76x = 17,512,761.84 × 8,112,505.76
  4. Step 4: Simplify right side
    12,693,541.76x = 142,072,381,300,508.19
  5. Step 5: Solve for x
    x = 142,072,381,300,508.19/12,693,541.76
  6. Step 6: Final answer
    x = 11,192,493.32

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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.