Home / 118,449,534.57-163,405,275.78-76,647,109.87

Finding the Fourth Proportional to 118,449,534.57, 163,405,275.78 and 76,647,109.87

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Solution

The fourth proportional to 118,449,534.57, 163,405,275.78 and 76,647,109.87 is: 105,737,368.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,449,534.57 : 163,405,275.78 = 76,647,109.87 : x
  2. Step 2: Convert to fraction form
    118,449,534.57/163,405,275.78 = 76,647,109.87/x
  3. Step 3: Cross multiply
    118,449,534.57x = 163,405,275.78 × 76,647,109.87
  4. Step 4: Simplify right side
    118,449,534.57x = 12,524,542,126,047,310
  5. Step 5: Solve for x
    x = 12,524,542,126,047,310/118,449,534.57
  6. Step 6: Final answer
    x = 105,737,368.84

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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.