Home / 12,482,611.20-18,723,916.80-10,656,028.80

Finding the Fourth Proportional to 12,482,611.20, 18,723,916.80 and 10,656,028.80

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Solution

The fourth proportional to 12,482,611.20, 18,723,916.80 and 10,656,028.80 is: 15,984,043.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482,611.20 : 18,723,916.80 = 10,656,028.80 : x
  2. Step 2: Convert to fraction form
    12,482,611.20/18,723,916.80 = 10,656,028.80/x
  3. Step 3: Cross multiply
    12,482,611.20x = 18,723,916.80 × 10,656,028.80
  4. Step 4: Simplify right side
    12,482,611.20x = 199,522,596,669,603.88
  5. Step 5: Solve for x
    x = 199,522,596,669,603.88/12,482,611.20
  6. Step 6: Final answer
    x = 15,984,043.20

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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.