Home / 20,422,446.40-28,182,976.16-11,255,089.28

Finding the Fourth Proportional to 20,422,446.40, 28,182,976.16 and 11,255,089.28

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Solution

The fourth proportional to 20,422,446.40, 28,182,976.16 and 11,255,089.28 is: 15,532,023.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,422,446.40 : 28,182,976.16 = 11,255,089.28 : x
  2. Step 2: Convert to fraction form
    20,422,446.40/28,182,976.16 = 11,255,089.28/x
  3. Step 3: Cross multiply
    20,422,446.40x = 28,182,976.16 × 11,255,089.28
  4. Step 4: Simplify right side
    20,422,446.40x = 317,201,912,856,911.56
  5. Step 5: Solve for x
    x = 317,201,912,856,911.56/20,422,446.40
  6. Step 6: Final answer
    x = 15,532,023.28

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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.