Home / 15,195,280.42-20,969,464.49-8,225,923.78

Finding the Fourth Proportional to 15,195,280.42, 20,969,464.49 and 8,225,923.78

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Solution

The fourth proportional to 15,195,280.42, 20,969,464.49 and 8,225,923.78 is: 11,351,762.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,195,280.42 : 20,969,464.49 = 8,225,923.78 : x
  2. Step 2: Convert to fraction form
    15,195,280.42/20,969,464.49 = 8,225,923.78/x
  3. Step 3: Cross multiply
    15,195,280.42x = 20,969,464.49 × 8,225,923.78
  4. Step 4: Simplify right side
    15,195,280.42x = 172,493,216,602,156.56
  5. Step 5: Solve for x
    x = 172,493,216,602,156.56/15,195,280.42
  6. Step 6: Final answer
    x = 11,351,762.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.