Home / 28,339,728.80-42,513,043.80-10,145,832.80

Finding the Fourth Proportional to 28,339,728.80, 42,513,043.80 and 10,145,832.80

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Solution

The fourth proportional to 28,339,728.80, 42,513,043.80 and 10,145,832.80 is: 15,219,984.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,339,728.80 : 42,513,043.80 = 10,145,832.80 : x
  2. Step 2: Convert to fraction form
    28,339,728.80/42,513,043.80 = 10,145,832.80/x
  3. Step 3: Cross multiply
    28,339,728.80x = 42,513,043.80 × 10,145,832.80
  4. Step 4: Simplify right side
    28,339,728.80x = 431,330,234,213,876.62
  5. Step 5: Solve for x
    x = 431,330,234,213,876.62/28,339,728.80
  6. Step 6: Final answer
    x = 15,219,984.54

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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.