Home / 21,223,388.25-29,267,468.91-13,474,978.47

Finding the Fourth Proportional to 21,223,388.25, 29,267,468.91 and 13,474,978.47

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Solution

The fourth proportional to 21,223,388.25, 29,267,468.91 and 13,474,978.47 is: 18,582,259.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223,388.25 : 29,267,468.91 = 13,474,978.47 : x
  2. Step 2: Convert to fraction form
    21,223,388.25/29,267,468.91 = 13,474,978.47/x
  3. Step 3: Cross multiply
    21,223,388.25x = 29,267,468.91 × 13,474,978.47
  4. Step 4: Simplify right side
    21,223,388.25x = 394,378,513,433,644.38
  5. Step 5: Solve for x
    x = 394,378,513,433,644.38/21,223,388.25
  6. Step 6: Final answer
    x = 18,582,259.76

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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.