Home / 13,123,230.66-18,109,634.94-7,162,409.34

Finding the Fourth Proportional to 13,123,230.66, 18,109,634.94 and 7,162,409.34

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Solution

The fourth proportional to 13,123,230.66, 18,109,634.94 and 7,162,409.34 is: 9,883,893.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,123,230.66 : 18,109,634.94 = 7,162,409.34 : x
  2. Step 2: Convert to fraction form
    13,123,230.66/18,109,634.94 = 7,162,409.34/x
  3. Step 3: Cross multiply
    13,123,230.66x = 18,109,634.94 × 7,162,409.34
  4. Step 4: Simplify right side
    13,123,230.66x = 129,708,618,438,246.34
  5. Step 5: Solve for x
    x = 129,708,618,438,246.34/13,123,230.66
  6. Step 6: Final answer
    x = 9,883,893.82

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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.