Home / 19,309,967-28,968,680.42-7,341,772.44

Finding the Fourth Proportional to 19,309,967, 28,968,680.42 and 7,341,772.44

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Solution

The fourth proportional to 19,309,967, 28,968,680.42 and 7,341,772.44 is: 11,014,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309,967 : 28,968,680.42 = 7,341,772.44 : x
  2. Step 2: Convert to fraction form
    19,309,967/28,968,680.42 = 7,341,772.44/x
  3. Step 3: Cross multiply
    19,309,967x = 28,968,680.42 × 7,341,772.44
  4. Step 4: Simplify right side
    19,309,967x = 212,681,459,530,723.66
  5. Step 5: Solve for x
    x = 212,681,459,530,723.66/19,309,967
  6. Step 6: Final answer
    x = 11,014,076.80

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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.