Home / 66,928,923.51-100,397,997.18-28,028,208.14

Finding the Fourth Proportional to 66,928,923.51, 100,397,997.18 and 28,028,208.14

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Solution

The fourth proportional to 66,928,923.51, 100,397,997.18 and 28,028,208.14 is: 42,044,243.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,928,923.51 : 100,397,997.18 = 28,028,208.14 : x
  2. Step 2: Convert to fraction form
    66,928,923.51/100,397,997.18 = 28,028,208.14/x
  3. Step 3: Cross multiply
    66,928,923.51x = 100,397,997.18 × 28,028,208.14
  4. Step 4: Simplify right side
    66,928,923.51x = 2,813,975,962,239,414.50
  5. Step 5: Solve for x
    x = 2,813,975,962,239,414.50/66,928,923.51
  6. Step 6: Final answer
    x = 42,044,243.58

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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.