Home / 10,780,014.60-16,170,021.90-5,111,310.60

Finding the Fourth Proportional to 10,780,014.60, 16,170,021.90 and 5,111,310.60

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Solution

The fourth proportional to 10,780,014.60, 16,170,021.90 and 5,111,310.60 is: 7,666,965.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,014.60 : 16,170,021.90 = 5,111,310.60 : x
  2. Step 2: Convert to fraction form
    10,780,014.60/16,170,021.90 = 5,111,310.60/x
  3. Step 3: Cross multiply
    10,780,014.60x = 16,170,021.90 × 5,111,310.60
  4. Step 4: Simplify right side
    10,780,014.60x = 82,650,004,339,702.14
  5. Step 5: Solve for x
    x = 82,650,004,339,702.14/10,780,014.60
  6. Step 6: Final answer
    x = 7,666,965.90

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Similar ratio
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1.5x scale

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.