Home / 72,310,780.44-99,819,408.65-48,821,137.38

Finding the Fourth Proportional to 72,310,780.44, 99,819,408.65 and 48,821,137.38

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Solution

The fourth proportional to 72,310,780.44, 99,819,408.65 and 48,821,137.38 is: 67,393,783.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,310,780.44 : 99,819,408.65 = 48,821,137.38 : x
  2. Step 2: Convert to fraction form
    72,310,780.44/99,819,408.65 = 48,821,137.38/x
  3. Step 3: Cross multiply
    72,310,780.44x = 99,819,408.65 × 48,821,137.38
  4. Step 4: Simplify right side
    72,310,780.44x = 4,873,297,062,647,905
  5. Step 5: Solve for x
    x = 4,873,297,062,647,905/72,310,780.44
  6. Step 6: Final answer
    x = 67,393,783.24

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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.