Home / 20,179,442.70-30,348,880.20-18,106,822.80

Finding the Fourth Proportional to 20,179,442.70, 30,348,880.20 and 18,106,822.80

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Solution

The fourth proportional to 20,179,442.70, 30,348,880.20 and 18,106,822.80 is: 27,231,762.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,179,442.70 : 30,348,880.20 = 18,106,822.80 : x
  2. Step 2: Convert to fraction form
    20,179,442.70/30,348,880.20 = 18,106,822.80/x
  3. Step 3: Cross multiply
    20,179,442.70x = 30,348,880.20 × 18,106,822.80
  4. Step 4: Simplify right side
    20,179,442.70x = 549,521,795,959,828.56
  5. Step 5: Solve for x
    x = 549,521,795,959,828.56/20,179,442.70
  6. Step 6: Final answer
    x = 27,231,762.75

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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.