Home / 18,926,104.96-28,389,382.73-5,278,420.98

Finding the Fourth Proportional to 18,926,104.96, 28,389,382.73 and 5,278,420.98

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Solution

The fourth proportional to 18,926,104.96, 28,389,382.73 and 5,278,420.98 is: 7,917,694.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926,104.96 : 28,389,382.73 = 5,278,420.98 : x
  2. Step 2: Convert to fraction form
    18,926,104.96/28,389,382.73 = 5,278,420.98/x
  3. Step 3: Cross multiply
    18,926,104.96x = 28,389,382.73 × 5,278,420.98
  4. Step 4: Simplify right side
    18,926,104.96x = 149,851,113,404,683.66
  5. Step 5: Solve for x
    x = 149,851,113,404,683.66/18,926,104.96
  6. Step 6: Final answer
    x = 7,917,694.30

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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.