Home / 13,621,420.10-20,421,960.60-8,228,934.20

Finding the Fourth Proportional to 13,621,420.10, 20,421,960.60 and 8,228,934.20

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Solution

The fourth proportional to 13,621,420.10, 20,421,960.60 and 8,228,934.20 is: 12,337,257.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,621,420.10 : 20,421,960.60 = 8,228,934.20 : x
  2. Step 2: Convert to fraction form
    13,621,420.10/20,421,960.60 = 8,228,934.20/x
  3. Step 3: Cross multiply
    13,621,420.10x = 20,421,960.60 × 8,228,934.20
  4. Step 4: Simplify right side
    13,621,420.10x = 168,050,970,012,392.53
  5. Step 5: Solve for x
    x = 168,050,970,012,392.53/13,621,420.10
  6. Step 6: Final answer
    x = 12,337,257.70

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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.