Home / 20,321,393.22-28,039,904.88-11,500,803

Finding the Fourth Proportional to 20,321,393.22, 28,039,904.88 and 11,500,803

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Solution

The fourth proportional to 20,321,393.22, 28,039,904.88 and 11,500,803 is: 15,869,060.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,321,393.22 : 28,039,904.88 = 11,500,803 : x
  2. Step 2: Convert to fraction form
    20,321,393.22/28,039,904.88 = 11,500,803/x
  3. Step 3: Cross multiply
    20,321,393.22x = 28,039,904.88 × 11,500,803
  4. Step 4: Simplify right side
    20,321,393.22x = 322,481,422,163,618.62
  5. Step 5: Solve for x
    x = 322,481,422,163,618.62/20,321,393.22
  6. Step 6: Final answer
    x = 15,869,060.68

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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.