Home / 53,172,858.20-79,759,287.30-45,520,107.80

Finding the Fourth Proportional to 53,172,858.20, 79,759,287.30 and 45,520,107.80

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Solution

The fourth proportional to 53,172,858.20, 79,759,287.30 and 45,520,107.80 is: 68,280,161.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,172,858.20 : 79,759,287.30 = 45,520,107.80 : x
  2. Step 2: Convert to fraction form
    53,172,858.20/79,759,287.30 = 45,520,107.80/x
  3. Step 3: Cross multiply
    53,172,858.20x = 79,759,287.30 × 45,520,107.80
  4. Step 4: Simplify right side
    53,172,858.20x = 3,630,651,355,947,170.50
  5. Step 5: Solve for x
    x = 3,630,651,355,947,170.50/53,172,858.20
  6. Step 6: Final answer
    x = 68,280,161.70

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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.