Home / 21,987,777.20-30,330,525.89-13,713,474.32

Finding the Fourth Proportional to 21,987,777.20, 30,330,525.89 and 13,713,474.32

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Solution

The fourth proportional to 21,987,777.20, 30,330,525.89 and 13,713,474.32 is: 18,916,731.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987,777.20 : 30,330,525.89 = 13,713,474.32 : x
  2. Step 2: Convert to fraction form
    21,987,777.20/30,330,525.89 = 13,713,474.32/x
  3. Step 3: Cross multiply
    21,987,777.20x = 30,330,525.89 × 13,713,474.32
  4. Step 4: Simplify right side
    21,987,777.20x = 415,936,887,684,390.12
  5. Step 5: Solve for x
    x = 415,936,887,684,390.12/21,987,777.20
  6. Step 6: Final answer
    x = 18,916,731.96

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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.