Home / 13,923,721.24-19,213,773.40-7,728,280.57

Finding the Fourth Proportional to 13,923,721.24, 19,213,773.40 and 7,728,280.57

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Solution

The fourth proportional to 13,923,721.24, 19,213,773.40 and 7,728,280.57 is: 10,664,493.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923,721.24 : 19,213,773.40 = 7,728,280.57 : x
  2. Step 2: Convert to fraction form
    13,923,721.24/19,213,773.40 = 7,728,280.57/x
  3. Step 3: Cross multiply
    13,923,721.24x = 19,213,773.40 × 7,728,280.57
  4. Step 4: Simplify right side
    13,923,721.24x = 148,489,431,643,602.84
  5. Step 5: Solve for x
    x = 148,489,431,643,602.84/13,923,721.24
  6. Step 6: Final answer
    x = 10,664,493.28

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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.