Home / 159,470,346.80-239,205,520.20-78,848,778.80

Finding the Fourth Proportional to 159,470,346.80, 239,205,520.20 and 78,848,778.80

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Solution

The fourth proportional to 159,470,346.80, 239,205,520.20 and 78,848,778.80 is: 118,273,168.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,470,346.80 : 239,205,520.20 = 78,848,778.80 : x
  2. Step 2: Convert to fraction form
    159,470,346.80/239,205,520.20 = 78,848,778.80/x
  3. Step 3: Cross multiply
    159,470,346.80x = 239,205,520.20 × 78,848,778.80
  4. Step 4: Simplify right side
    159,470,346.80x = 18,861,063,149,988,732
  5. Step 5: Solve for x
    x = 18,861,063,149,988,732/159,470,346.80
  6. Step 6: Final answer
    x = 118,273,168.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.