Home / 49,770,751.20-74,656,126.80-21,007,327.20

Finding the Fourth Proportional to 49,770,751.20, 74,656,126.80 and 21,007,327.20

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Solution

The fourth proportional to 49,770,751.20, 74,656,126.80 and 21,007,327.20 is: 31,510,990.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,770,751.20 : 74,656,126.80 = 21,007,327.20 : x
  2. Step 2: Convert to fraction form
    49,770,751.20/74,656,126.80 = 21,007,327.20/x
  3. Step 3: Cross multiply
    49,770,751.20x = 74,656,126.80 × 21,007,327.20
  4. Step 4: Simplify right side
    49,770,751.20x = 1,568,325,683,172,288.75
  5. Step 5: Solve for x
    x = 1,568,325,683,172,288.75/49,770,751.20
  6. Step 6: Final answer
    x = 31,510,990.80

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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.