Home / 18,989,418.41-28,484,127.96-4,612,389.31

Finding the Fourth Proportional to 18,989,418.41, 28,484,127.96 and 4,612,389.31

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Solution

The fourth proportional to 18,989,418.41, 28,484,127.96 and 4,612,389.31 is: 6,918,584.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,989,418.41 : 28,484,127.96 = 4,612,389.31 : x
  2. Step 2: Convert to fraction form
    18,989,418.41/28,484,127.96 = 4,612,389.31/x
  3. Step 3: Cross multiply
    18,989,418.41x = 28,484,127.96 × 4,612,389.31
  4. Step 4: Simplify right side
    18,989,418.41x = 131,379,887,307,376.09
  5. Step 5: Solve for x
    x = 131,379,887,307,376.09/18,989,418.41
  6. Step 6: Final answer
    x = 6,918,584.05

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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.