Home / 66,917,361.80-100,380,840.42-28,016,667.92

Finding the Fourth Proportional to 66,917,361.80, 100,380,840.42 and 28,016,667.92

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Solution

The fourth proportional to 66,917,361.80, 100,380,840.42 and 28,016,667.92 is: 42,027,010.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,917,361.80 : 100,380,840.42 = 28,016,667.92 : x
  2. Step 2: Convert to fraction form
    66,917,361.80/100,380,840.42 = 28,016,667.92/x
  3. Step 3: Cross multiply
    66,917,361.80x = 100,380,840.42 × 28,016,667.92
  4. Step 4: Simplify right side
    66,917,361.80x = 2,812,336,671,577,653.50
  5. Step 5: Solve for x
    x = 2,812,336,671,577,653.50/66,917,361.80
  6. Step 6: Final answer
    x = 42,027,010.57

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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.