Home / 13,131,635.20-19,697,452.80-8,648,972.80

Finding the Fourth Proportional to 13,131,635.20, 19,697,452.80 and 8,648,972.80

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Solution

The fourth proportional to 13,131,635.20, 19,697,452.80 and 8,648,972.80 is: 12,973,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,131,635.20 : 19,697,452.80 = 8,648,972.80 : x
  2. Step 2: Convert to fraction form
    13,131,635.20/19,697,452.80 = 8,648,972.80/x
  3. Step 3: Cross multiply
    13,131,635.20x = 19,697,452.80 × 8,648,972.80
  4. Step 4: Simplify right side
    13,131,635.20x = 170,362,733,496,483.88
  5. Step 5: Solve for x
    x = 170,362,733,496,483.88/13,131,635.20
  6. Step 6: Final answer
    x = 12,973,459.20

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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.