Home / 780,518,917.48-1,170,847,193.85-220,285,736.86

Finding the Fourth Proportional to 780,518,917.48, 1,170,847,193.85 and 220,285,736.86

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Solution

The fourth proportional to 780,518,917.48, 1,170,847,193.85 and 220,285,736.86 is: 330,448,027.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,518,917.48 : 1,170,847,193.85 = 220,285,736.86 : x
  2. Step 2: Convert to fraction form
    780,518,917.48/1,170,847,193.85 = 220,285,736.86/x
  3. Step 3: Cross multiply
    780,518,917.48x = 1,170,847,193.85 × 220,285,736.86
  4. Step 4: Simplify right side
    780,518,917.48x = 257,920,936,847,710,496
  5. Step 5: Solve for x
    x = 257,920,936,847,710,496/780,518,917.48
  6. Step 6: Final answer
    x = 330,448,027.68

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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.