Home / 12,765,890.20-19,148,835.30-8,734,811.80

Finding the Fourth Proportional to 12,765,890.20, 19,148,835.30 and 8,734,811.80

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Solution

The fourth proportional to 12,765,890.20, 19,148,835.30 and 8,734,811.80 is: 13,102,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765,890.20 : 19,148,835.30 = 8,734,811.80 : x
  2. Step 2: Convert to fraction form
    12,765,890.20/19,148,835.30 = 8,734,811.80/x
  3. Step 3: Cross multiply
    12,765,890.20x = 19,148,835.30 × 8,734,811.80
  4. Step 4: Simplify right side
    12,765,890.20x = 167,261,472,534,696.56
  5. Step 5: Solve for x
    x = 167,261,472,534,696.56/12,765,890.20
  6. Step 6: Final answer
    x = 13,102,217.70

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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.