Home / 38,783,842.09-53,522,063.12-21,380,810.11

Finding the Fourth Proportional to 38,783,842.09, 53,522,063.12 and 21,380,810.11

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Solution

The fourth proportional to 38,783,842.09, 53,522,063.12 and 21,380,810.11 is: 29,505,716.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,783,842.09 : 53,522,063.12 = 21,380,810.11 : x
  2. Step 2: Convert to fraction form
    38,783,842.09/53,522,063.12 = 21,380,810.11/x
  3. Step 3: Cross multiply
    38,783,842.09x = 53,522,063.12 × 21,380,810.11
  4. Step 4: Simplify right side
    38,783,842.09x = 1,144,345,068,183,801.25
  5. Step 5: Solve for x
    x = 1,144,345,068,183,801.25/38,783,842.09
  6. Step 6: Final answer
    x = 29,505,716.98

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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.