Home / 10,379,640.60-15,570,948.90-3,191,778.20

Finding the Fourth Proportional to 10,379,640.60, 15,570,948.90 and 3,191,778.20

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Solution

The fourth proportional to 10,379,640.60, 15,570,948.90 and 3,191,778.20 is: 4,788,124.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,379,640.60 : 15,570,948.90 = 3,191,778.20 : x
  2. Step 2: Convert to fraction form
    10,379,640.60/15,570,948.90 = 3,191,778.20/x
  3. Step 3: Cross multiply
    10,379,640.60x = 15,570,948.90 × 3,191,778.20
  4. Step 4: Simplify right side
    10,379,640.60x = 49,699,015,252,333.98
  5. Step 5: Solve for x
    x = 49,699,015,252,333.98/10,379,640.60
  6. Step 6: Final answer
    x = 4,788,124.87

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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.