Home / 118,449,533.57-163,405,274.40-76,647,108.87

Finding the Fourth Proportional to 118,449,533.57, 163,405,274.40 and 76,647,108.87

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Solution

The fourth proportional to 118,449,533.57, 163,405,274.40 and 76,647,108.87 is: 105,737,367.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,449,533.57 : 163,405,274.40 = 76,647,108.87 : x
  2. Step 2: Convert to fraction form
    118,449,533.57/163,405,274.40 = 76,647,108.87/x
  3. Step 3: Cross multiply
    118,449,533.57x = 163,405,274.40 × 76,647,108.87
  4. Step 4: Simplify right side
    118,449,533.57x = 12,524,541,856,869,026
  5. Step 5: Solve for x
    x = 12,524,541,856,869,026/118,449,533.57
  6. Step 6: Final answer
    x = 105,737,367.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.