Home / 20,824,139.22-28,736,951.85-11,531,525.10

Finding the Fourth Proportional to 20,824,139.22, 28,736,951.85 and 11,531,525.10

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Solution

The fourth proportional to 20,824,139.22, 28,736,951.85 and 11,531,525.10 is: 15,913,305.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,824,139.22 : 28,736,951.85 = 11,531,525.10 : x
  2. Step 2: Convert to fraction form
    20,824,139.22/28,736,951.85 = 11,531,525.10/x
  3. Step 3: Cross multiply
    20,824,139.22x = 28,736,951.85 × 11,531,525.10
  4. Step 4: Simplify right side
    20,824,139.22x = 331,380,881,555,766.44
  5. Step 5: Solve for x
    x = 331,380,881,555,766.44/20,824,139.22
  6. Step 6: Final answer
    x = 15,913,305.13

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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.