Home / 18,869,108.24-28,303,506.84-5,405,949.20

Finding the Fourth Proportional to 18,869,108.24, 28,303,506.84 and 5,405,949.20

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Solution

The fourth proportional to 18,869,108.24, 28,303,506.84 and 5,405,949.20 is: 8,108,879.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869,108.24 : 28,303,506.84 = 5,405,949.20 : x
  2. Step 2: Convert to fraction form
    18,869,108.24/28,303,506.84 = 5,405,949.20/x
  3. Step 3: Cross multiply
    18,869,108.24x = 28,303,506.84 × 5,405,949.20
  4. Step 4: Simplify right side
    18,869,108.24x = 153,007,320,158,892.53
  5. Step 5: Solve for x
    x = 153,007,320,158,892.53/18,869,108.24
  6. Step 6: Final answer
    x = 8,108,879.24

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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.