Home / 20,648,276.72-28,498,188.65-11,951,244.75

Finding the Fourth Proportional to 20,648,276.72, 28,498,188.65 and 11,951,244.75

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Solution

The fourth proportional to 20,648,276.72, 28,498,188.65 and 11,951,244.75 is: 16,494,782.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648,276.72 : 28,498,188.65 = 11,951,244.75 : x
  2. Step 2: Convert to fraction form
    20,648,276.72/28,498,188.65 = 11,951,244.75/x
  3. Step 3: Cross multiply
    20,648,276.72x = 28,498,188.65 × 11,951,244.75
  4. Step 4: Simplify right side
    20,648,276.72x = 340,588,827,428,065.88
  5. Step 5: Solve for x
    x = 340,588,827,428,065.88/20,648,276.72
  6. Step 6: Final answer
    x = 16,494,782.21

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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.