Home / 21,384,063.80-32,085,311.70-12,416,281.40

Finding the Fourth Proportional to 21,384,063.80, 32,085,311.70 and 12,416,281.40

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Solution

The fourth proportional to 21,384,063.80, 32,085,311.70 and 12,416,281.40 is: 18,629,773.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384,063.80 : 32,085,311.70 = 12,416,281.40 : x
  2. Step 2: Convert to fraction form
    21,384,063.80/32,085,311.70 = 12,416,281.40/x
  3. Step 3: Cross multiply
    21,384,063.80x = 32,085,311.70 × 12,416,281.40
  4. Step 4: Simplify right side
    21,384,063.80x = 398,380,258,873,912.38
  5. Step 5: Solve for x
    x = 398,380,258,873,912.38/21,384,063.80
  6. Step 6: Final answer
    x = 18,629,773.21

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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.