Home / 18,728,007.90-28,080,607.05-7,354,830.30

Finding the Fourth Proportional to 18,728,007.90, 28,080,607.05 and 7,354,830.30

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Solution

The fourth proportional to 18,728,007.90, 28,080,607.05 and 7,354,830.30 is: 11,027,766.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,728,007.90 : 28,080,607.05 = 7,354,830.30 : x
  2. Step 2: Convert to fraction form
    18,728,007.90/28,080,607.05 = 7,354,830.30/x
  3. Step 3: Cross multiply
    18,728,007.90x = 28,080,607.05 × 7,354,830.30
  4. Step 4: Simplify right side
    18,728,007.90x = 206,528,099,573,733.62
  5. Step 5: Solve for x
    x = 206,528,099,573,733.62/18,728,007.90
  6. Step 6: Final answer
    x = 11,027,766.58

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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.