Home / 117,720,021.20-176,611,524.60-83,707,797.20

Finding the Fourth Proportional to 117,720,021.20, 176,611,524.60 and 83,707,797.20

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Solution

The fourth proportional to 117,720,021.20, 176,611,524.60 and 83,707,797.20 is: 125,584,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,720,021.20 : 176,611,524.60 = 83,707,797.20 : x
  2. Step 2: Convert to fraction form
    117,720,021.20/176,611,524.60 = 83,707,797.20/x
  3. Step 3: Cross multiply
    117,720,021.20x = 176,611,524.60 × 83,707,797.20
  4. Step 4: Simplify right side
    117,720,021.20x = 14,783,761,684,399,612
  5. Step 5: Solve for x
    x = 14,783,761,684,399,612/117,720,021.20
  6. Step 6: Final answer
    x = 125,584,089.55

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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.