Home / 20,694,361,749.43-28,563,532,751.11-13,478,390,776.54

Finding the Fourth Proportional to 20,694,361,749.43, 28,563,532,751.11 and 13,478,390,776.54

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Solution

The fourth proportional to 20,694,361,749.43, 28,563,532,751.11 and 13,478,390,776.54 is: 18,603,640,017.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694,361,749.43 : 28,563,532,751.11 = 13,478,390,776.54 : x
  2. Step 2: Convert to fraction form
    20,694,361,749.43/28,563,532,751.11 = 13,478,390,776.54/x
  3. Step 3: Cross multiply
    20,694,361,749.43x = 28,563,532,751.11 × 13,478,390,776.54
  4. Step 4: Simplify right side
    20,694,361,749.43x = 384,990,456,377,834,733,568
  5. Step 5: Solve for x
    x = 384,990,456,377,834,733,568/20,694,361,749.43
  6. Step 6: Final answer
    x = 18,603,640,017.47

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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.