Home / 12,390,200.87-18,578,919.69-5,560,919.55

Finding the Fourth Proportional to 12,390,200.87, 18,578,919.69 and 5,560,919.55

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Solution

The fourth proportional to 12,390,200.87, 18,578,919.69 and 5,560,919.55 is: 8,338,515.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390,200.87 : 18,578,919.69 = 5,560,919.55 : x
  2. Step 2: Convert to fraction form
    12,390,200.87/18,578,919.69 = 5,560,919.55/x
  3. Step 3: Cross multiply
    12,390,200.87x = 18,578,919.69 × 5,560,919.55
  4. Step 4: Simplify right side
    12,390,200.87x = 103,315,877,722,000.94
  5. Step 5: Solve for x
    x = 103,315,877,722,000.94/12,390,200.87
  6. Step 6: Final answer
    x = 8,338,515.16

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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.