Home / 66,717,249.12-100,083,340.80-21,268,499.04

Finding the Fourth Proportional to 66,717,249.12, 100,083,340.80 and 21,268,499.04

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Solution

The fourth proportional to 66,717,249.12, 100,083,340.80 and 21,268,499.04 is: 31,905,128.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,717,249.12 : 100,083,340.80 = 21,268,499.04 : x
  2. Step 2: Convert to fraction form
    66,717,249.12/100,083,340.80 = 21,268,499.04/x
  3. Step 3: Cross multiply
    66,717,249.12x = 100,083,340.80 × 21,268,499.04
  4. Step 4: Simplify right side
    66,717,249.12x = 2,128,622,437,724,792.75
  5. Step 5: Solve for x
    x = 2,128,622,437,724,792.75/66,717,249.12
  6. Step 6: Final answer
    x = 31,905,128.97

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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.