Home / 20,392,202.82-28,137,947.14-11,688,773.88

Finding the Fourth Proportional to 20,392,202.82, 28,137,947.14 and 11,688,773.88

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Solution

The fourth proportional to 20,392,202.82, 28,137,947.14 and 11,688,773.88 is: 16,128,620.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,392,202.82 : 28,137,947.14 = 11,688,773.88 : x
  2. Step 2: Convert to fraction form
    20,392,202.82/28,137,947.14 = 11,688,773.88/x
  3. Step 3: Cross multiply
    20,392,202.82x = 28,137,947.14 × 11,688,773.88
  4. Step 4: Simplify right side
    20,392,202.82x = 328,898,101,566,852.75
  5. Step 5: Solve for x
    x = 328,898,101,566,852.75/20,392,202.82
  6. Step 6: Final answer
    x = 16,128,620.56

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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.