Home / 139,587,532.85-192,505,394.94-87,381,327.80

Finding the Fourth Proportional to 139,587,532.85, 192,505,394.94 and 87,381,327.80

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Solution

The fourth proportional to 139,587,532.85, 192,505,394.94 and 87,381,327.80 is: 120,507,732.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,587,532.85 : 192,505,394.94 = 87,381,327.80 : x
  2. Step 2: Convert to fraction form
    139,587,532.85/192,505,394.94 = 87,381,327.80/x
  3. Step 3: Cross multiply
    139,587,532.85x = 192,505,394.94 × 87,381,327.80
  4. Step 4: Simplify right side
    139,587,532.85x = 16,821,377,018,520,600
  5. Step 5: Solve for x
    x = 16,821,377,018,520,600/139,587,532.85
  6. Step 6: Final answer
    x = 120,507,732.14

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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.