Home / 80,929,226.80-121,393,840.20-72,426,170.80

Finding the Fourth Proportional to 80,929,226.80, 121,393,840.20 and 72,426,170.80

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Solution

The fourth proportional to 80,929,226.80, 121,393,840.20 and 72,426,170.80 is: 108,639,256.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,929,226.80 : 121,393,840.20 = 72,426,170.80 : x
  2. Step 2: Convert to fraction form
    80,929,226.80/121,393,840.20 = 72,426,170.80/x
  3. Step 3: Cross multiply
    80,929,226.80x = 121,393,840.20 × 72,426,170.80
  4. Step 4: Simplify right side
    80,929,226.80x = 8,792,091,004,393,106
  5. Step 5: Solve for x
    x = 8,792,091,004,393,106/80,929,226.80
  6. Step 6: Final answer
    x = 108,639,256.20

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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.