Home / 39,631,302,273.92-54,691,206,065.35-21,809,959,779.92

Finding the Fourth Proportional to 39,631,302,273.92, 54,691,206,065.35 and 21,809,959,779.92

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Solution

The fourth proportional to 39,631,302,273.92, 54,691,206,065.35 and 21,809,959,779.92 is: 30,097,749,409.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,631,302,273.92 : 54,691,206,065.35 = 21,809,959,779.92 : x
  2. Step 2: Convert to fraction form
    39,631,302,273.92/54,691,206,065.35 = 21,809,959,779.92/x
  3. Step 3: Cross multiply
    39,631,302,273.92x = 54,691,206,065.35 × 21,809,959,779.92
  4. Step 4: Simplify right side
    39,631,302,273.92x = 1,192,813,004,600,436,588,544
  5. Step 5: Solve for x
    x = 1,192,813,004,600,436,588,544/39,631,302,273.92
  6. Step 6: Final answer
    x = 30,097,749,409.19

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Double scale
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1.5x scale

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.