Home / 28,411,612.80-42,618,940.56-8,979,360.54

Finding the Fourth Proportional to 28,411,612.80, 42,618,940.56 and 8,979,360.54

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Solution

The fourth proportional to 28,411,612.80, 42,618,940.56 and 8,979,360.54 is: 13,469,521.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,411,612.80 : 42,618,940.56 = 8,979,360.54 : x
  2. Step 2: Convert to fraction form
    28,411,612.80/42,618,940.56 = 8,979,360.54/x
  3. Step 3: Cross multiply
    28,411,612.80x = 42,618,940.56 × 8,979,360.54
  4. Step 4: Simplify right side
    28,411,612.80x = 382,690,833,121,069.50
  5. Step 5: Solve for x
    x = 382,690,833,121,069.50/28,411,612.80
  6. Step 6: Final answer
    x = 13,469,521.63

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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.