Home / 84,012,381.70-126,017,316.24-51,232,580.80

Finding the Fourth Proportional to 84,012,381.70, 126,017,316.24 and 51,232,580.80

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Solution

The fourth proportional to 84,012,381.70, 126,017,316.24 and 51,232,580.80 is: 76,848,105.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,012,381.70 : 126,017,316.24 = 51,232,580.80 : x
  2. Step 2: Convert to fraction form
    84,012,381.70/126,017,316.24 = 51,232,580.80/x
  3. Step 3: Cross multiply
    84,012,381.70x = 126,017,316.24 × 51,232,580.80
  4. Step 4: Simplify right side
    84,012,381.70x = 6,456,192,336,464,952
  5. Step 5: Solve for x
    x = 6,456,192,336,464,952/84,012,381.70
  6. Step 6: Final answer
    x = 76,848,105.07

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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.