Home / 20,415,190.58-28,172,947.65-11,247,833.30

Finding the Fourth Proportional to 20,415,190.58, 28,172,947.65 and 11,247,833.30

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Solution

The fourth proportional to 20,415,190.58, 28,172,947.65 and 11,247,833.30 is: 15,522,001.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,415,190.58 : 28,172,947.65 = 11,247,833.30 : x
  2. Step 2: Convert to fraction form
    20,415,190.58/28,172,947.65 = 11,247,833.30/x
  3. Step 3: Cross multiply
    20,415,190.58x = 28,172,947.65 × 11,247,833.30
  4. Step 4: Simplify right side
    20,415,190.58x = 316,884,618,736,826.75
  5. Step 5: Solve for x
    x = 316,884,618,736,826.75/20,415,190.58
  6. Step 6: Final answer
    x = 15,522,001.50

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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.