Home / 38,505,181.75-53,137,196.84-20,864,071.56

Finding the Fourth Proportional to 38,505,181.75, 53,137,196.84 and 20,864,071.56

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Solution

The fourth proportional to 38,505,181.75, 53,137,196.84 and 20,864,071.56 is: 28,792,443.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,505,181.75 : 53,137,196.84 = 20,864,071.56 : x
  2. Step 2: Convert to fraction form
    38,505,181.75/53,137,196.84 = 20,864,071.56/x
  3. Step 3: Cross multiply
    38,505,181.75x = 53,137,196.84 × 20,864,071.56
  4. Step 4: Simplify right side
    38,505,181.75x = 1,108,658,277,618,990.50
  5. Step 5: Solve for x
    x = 1,108,658,277,618,990.50/38,505,181.75
  6. Step 6: Final answer
    x = 28,792,443.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.