Home / 66,981,028.71-100,407,769.74-21,510,936.75

Finding the Fourth Proportional to 66,981,028.71, 100,407,769.74 and 21,510,936.75

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Solution

The fourth proportional to 66,981,028.71, 100,407,769.74 and 21,510,936.75 is: 32,245,924.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,981,028.71 : 100,407,769.74 = 21,510,936.75 : x
  2. Step 2: Convert to fraction form
    66,981,028.71/100,407,769.74 = 21,510,936.75/x
  3. Step 3: Cross multiply
    66,981,028.71x = 100,407,769.74 × 21,510,936.75
  4. Step 4: Simplify right side
    66,981,028.71x = 2,159,865,184,085,703.75
  5. Step 5: Solve for x
    x = 2,159,865,184,085,703.75/66,981,028.71
  6. Step 6: Final answer
    x = 32,245,924.34

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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.