Home / 20,976,093,345.78-28,946,670,997.41-11,460,440,774.34

Finding the Fourth Proportional to 20,976,093,345.78, 28,946,670,997.41 and 11,460,440,774.34

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Solution

The fourth proportional to 20,976,093,345.78, 28,946,670,997.41 and 11,460,440,774.34 is: 15,815,223,698.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,976,093,345.78 : 28,946,670,997.41 = 11,460,440,774.34 : x
  2. Step 2: Convert to fraction form
    20,976,093,345.78/28,946,670,997.41 = 11,460,440,774.34/x
  3. Step 3: Cross multiply
    20,976,093,345.78x = 28,946,670,997.41 × 11,460,440,774.34
  4. Step 4: Simplify right side
    20,976,093,345.78x = 331,741,608,580,122,673,152
  5. Step 5: Solve for x
    x = 331,741,608,580,122,673,152/20,976,093,345.78
  6. Step 6: Final answer
    x = 15,815,223,698.31

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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.