Home / 79,236,743.20-118,855,114.80-54,577,880.80

Finding the Fourth Proportional to 79,236,743.20, 118,855,114.80 and 54,577,880.80

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Solution

The fourth proportional to 79,236,743.20, 118,855,114.80 and 54,577,880.80 is: 81,866,821.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,236,743.20 : 118,855,114.80 = 54,577,880.80 : x
  2. Step 2: Convert to fraction form
    79,236,743.20/118,855,114.80 = 54,577,880.80/x
  3. Step 3: Cross multiply
    79,236,743.20x = 118,855,114.80 × 54,577,880.80
  4. Step 4: Simplify right side
    79,236,743.20x = 6,486,860,288,024,715
  5. Step 5: Solve for x
    x = 6,486,860,288,024,715/79,236,743.20
  6. Step 6: Final answer
    x = 81,866,821.20

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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.