Home / 142,890,105.70-214,064,713.59-84,422,936.26

Finding the Fourth Proportional to 142,890,105.70, 214,064,713.59 and 84,422,936.26

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Solution

The fourth proportional to 142,890,105.70, 214,064,713.59 and 84,422,936.26 is: 126,474,618.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,890,105.70 : 214,064,713.59 = 84,422,936.26 : x
  2. Step 2: Convert to fraction form
    142,890,105.70/214,064,713.59 = 84,422,936.26/x
  3. Step 3: Cross multiply
    142,890,105.70x = 214,064,713.59 × 84,422,936.26
  4. Step 4: Simplify right side
    142,890,105.70x = 18,071,971,670,923,728
  5. Step 5: Solve for x
    x = 18,071,971,670,923,728/142,890,105.70
  6. Step 6: Final answer
    x = 126,474,618.96

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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.