Home / 20,694,361,750.43-28,563,532,752.49-13,478,390,777.54

Finding the Fourth Proportional to 20,694,361,750.43, 28,563,532,752.49 and 13,478,390,777.54

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Solution

The fourth proportional to 20,694,361,750.43, 28,563,532,752.49 and 13,478,390,777.54 is: 18,603,640,018.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694,361,750.43 : 28,563,532,752.49 = 13,478,390,777.54 : x
  2. Step 2: Convert to fraction form
    20,694,361,750.43/28,563,532,752.49 = 13,478,390,777.54/x
  3. Step 3: Cross multiply
    20,694,361,750.43x = 28,563,532,752.49 × 13,478,390,777.54
  4. Step 4: Simplify right side
    20,694,361,750.43x = 384,990,456,425,123,020,800
  5. Step 5: Solve for x
    x = 384,990,456,425,123,020,800/20,694,361,750.43
  6. Step 6: Final answer
    x = 18,603,640,018.86

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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.