Home / 74,069,108.49-111,103,345.42-18,737,467.21

Finding the Fourth Proportional to 74,069,108.49, 111,103,345.42 and 18,737,467.21

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Solution

The fourth proportional to 74,069,108.49, 111,103,345.42 and 18,737,467.21 is: 28,106,120.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,069,108.49 : 111,103,345.42 = 18,737,467.21 : x
  2. Step 2: Convert to fraction form
    74,069,108.49/111,103,345.42 = 18,737,467.21/x
  3. Step 3: Cross multiply
    74,069,108.49x = 111,103,345.42 × 18,737,467.21
  4. Step 4: Simplify right side
    74,069,108.49x = 2,081,795,291,728,553.75
  5. Step 5: Solve for x
    x = 2,081,795,291,728,553.75/74,069,108.49
  6. Step 6: Final answer
    x = 28,106,120.54

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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.