Home / 13,376,499.70-20,064,749.55-7,991,230.90

Finding the Fourth Proportional to 13,376,499.70, 20,064,749.55 and 7,991,230.90

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Solution

The fourth proportional to 13,376,499.70, 20,064,749.55 and 7,991,230.90 is: 11,986,846.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,376,499.70 : 20,064,749.55 = 7,991,230.90 : x
  2. Step 2: Convert to fraction form
    13,376,499.70/20,064,749.55 = 7,991,230.90/x
  3. Step 3: Cross multiply
    13,376,499.70x = 20,064,749.55 × 7,991,230.90
  4. Step 4: Simplify right side
    13,376,499.70x = 160,342,046,604,721.09
  5. Step 5: Solve for x
    x = 160,342,046,604,721.09/13,376,499.70
  6. Step 6: Final answer
    x = 11,986,846.35

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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.