Home / 20,815,701.84-28,725,212.88-11,396,473.20

Finding the Fourth Proportional to 20,815,701.84, 28,725,212.88 and 11,396,473.20

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Solution

The fourth proportional to 20,815,701.84, 28,725,212.88 and 11,396,473.20 is: 15,726,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,815,701.84 : 28,725,212.88 = 11,396,473.20 : x
  2. Step 2: Convert to fraction form
    20,815,701.84/28,725,212.88 = 11,396,473.20/x
  3. Step 3: Cross multiply
    20,815,701.84x = 28,725,212.88 × 11,396,473.20
  4. Step 4: Simplify right side
    20,815,701.84x = 327,366,118,751,214.81
  5. Step 5: Solve for x
    x = 327,366,118,751,214.81/20,815,701.84
  6. Step 6: Final answer
    x = 15,726,883.55

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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.