Home / 20,385,380.60-30,578,062.39-7,432,501.31

Finding the Fourth Proportional to 20,385,380.60, 30,578,062.39 and 7,432,501.31

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Solution

The fourth proportional to 20,385,380.60, 30,578,062.39 and 7,432,501.31 is: 11,148,748.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385,380.60 : 30,578,062.39 = 7,432,501.31 : x
  2. Step 2: Convert to fraction form
    20,385,380.60/30,578,062.39 = 7,432,501.31/x
  3. Step 3: Cross multiply
    20,385,380.60x = 30,578,062.39 × 7,432,501.31
  4. Step 4: Simplify right side
    20,385,380.60x = 227,271,488,770,936.72
  5. Step 5: Solve for x
    x = 227,271,488,770,936.72/20,385,380.60
  6. Step 6: Final answer
    x = 11,148,748.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.