Home / 13,543,890.12-18,690,796.98-7,432,887.24

Finding the Fourth Proportional to 13,543,890.12, 18,690,796.98 and 7,432,887.24

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Solution

The fourth proportional to 13,543,890.12, 18,690,796.98 and 7,432,887.24 is: 10,257,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543,890.12 : 18,690,796.98 = 7,432,887.24 : x
  2. Step 2: Convert to fraction form
    13,543,890.12/18,690,796.98 = 7,432,887.24/x
  3. Step 3: Cross multiply
    13,543,890.12x = 18,690,796.98 × 7,432,887.24
  4. Step 4: Simplify right side
    13,543,890.12x = 138,926,586,378,072.55
  5. Step 5: Solve for x
    x = 138,926,586,378,072.55/13,543,890.12
  6. Step 6: Final answer
    x = 10,257,509.85

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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.