Home / 12,482,028.80-18,723,043.20-10,690,438.40

Finding the Fourth Proportional to 12,482,028.80, 18,723,043.20 and 10,690,438.40

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Solution

The fourth proportional to 12,482,028.80, 18,723,043.20 and 10,690,438.40 is: 16,035,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,028.80 : 18,723,043.20 = 10,690,438.40 : x
  2. Step 2: Convert to fraction form
    12,482,028.80/18,723,043.20 = 10,690,438.40/x
  3. Step 3: Cross multiply
    12,482,028.80x = 18,723,043.20 × 10,690,438.40
  4. Step 4: Simplify right side
    12,482,028.80x = 200,157,539,990,138.88
  5. Step 5: Solve for x
    x = 200,157,539,990,138.88/12,482,028.80
  6. Step 6: Final answer
    x = 16,035,657.60

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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.