Home / 13,420,586.66-20,129,372.30-3,706,580.72

Finding the Fourth Proportional to 13,420,586.66, 20,129,372.30 and 3,706,580.72

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Solution

The fourth proportional to 13,420,586.66, 20,129,372.30 and 3,706,580.72 is: 5,559,454.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,420,586.66 : 20,129,372.30 = 3,706,580.72 : x
  2. Step 2: Convert to fraction form
    13,420,586.66/20,129,372.30 = 3,706,580.72/x
  3. Step 3: Cross multiply
    13,420,586.66x = 20,129,372.30 × 3,706,580.72
  4. Step 4: Simplify right side
    13,420,586.66x = 74,611,143,332,471.94
  5. Step 5: Solve for x
    x = 74,611,143,332,471.94/13,420,586.66
  6. Step 6: Final answer
    x = 5,559,454.68

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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.