Home / 84,012,380.70-126,017,314.74-51,232,579.80

Finding the Fourth Proportional to 84,012,380.70, 126,017,314.74 and 51,232,579.80

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Solution

The fourth proportional to 84,012,380.70, 126,017,314.74 and 51,232,579.80 is: 76,848,103.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,012,380.70 : 126,017,314.74 = 51,232,579.80 : x
  2. Step 2: Convert to fraction form
    84,012,380.70/126,017,314.74 = 51,232,579.80/x
  3. Step 3: Cross multiply
    84,012,380.70x = 126,017,314.74 × 51,232,579.80
  4. Step 4: Simplify right side
    84,012,380.70x = 6,456,192,133,598,766
  5. Step 5: Solve for x
    x = 6,456,192,133,598,766/84,012,380.70
  6. Step 6: Final answer
    x = 76,848,103.57

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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.