Home / 13,600,684-20,403,718.20-3,885,380.80

Finding the Fourth Proportional to 13,600,684, 20,403,718.20 and 3,885,380.80

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Solution

The fourth proportional to 13,600,684, 20,403,718.20 and 3,885,380.80 is: 5,828,840.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,600,684 : 20,403,718.20 = 3,885,380.80 : x
  2. Step 2: Convert to fraction form
    13,600,684/20,403,718.20 = 3,885,380.80/x
  3. Step 3: Cross multiply
    13,600,684x = 20,403,718.20 × 3,885,380.80
  4. Step 4: Simplify right side
    13,600,684x = 79,276,214,942,890.55
  5. Step 5: Solve for x
    x = 79,276,214,942,890.55/13,600,684
  6. Step 6: Final answer
    x = 5,828,840.30

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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.