Home / 21,987,774.18-30,330,521.76-13,713,471.30

Finding the Fourth Proportional to 21,987,774.18, 30,330,521.76 and 13,713,471.30

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Solution

The fourth proportional to 21,987,774.18, 30,330,521.76 and 13,713,471.30 is: 18,916,727.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987,774.18 : 30,330,521.76 = 13,713,471.30 : x
  2. Step 2: Convert to fraction form
    21,987,774.18/30,330,521.76 = 13,713,471.30/x
  3. Step 3: Cross multiply
    21,987,774.18x = 30,330,521.76 × 13,713,471.30
  4. Step 4: Simplify right side
    21,987,774.18x = 415,936,739,669,785.56
  5. Step 5: Solve for x
    x = 415,936,739,669,785.56/21,987,774.18
  6. Step 6: Final answer
    x = 18,916,727.83

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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.