Home / 76,621,769.25-105,738,013.89-41,814,459.78

Finding the Fourth Proportional to 76,621,769.25, 105,738,013.89 and 41,814,459.78

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Solution

The fourth proportional to 76,621,769.25, 105,738,013.89 and 41,814,459.78 is: 57,703,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,621,769.25 : 105,738,013.89 = 41,814,459.78 : x
  2. Step 2: Convert to fraction form
    76,621,769.25/105,738,013.89 = 41,814,459.78/x
  3. Step 3: Cross multiply
    76,621,769.25x = 105,738,013.89 × 41,814,459.78
  4. Step 4: Simplify right side
    76,621,769.25x = 4,421,377,929,020,486.50
  5. Step 5: Solve for x
    x = 4,421,377,929,020,486.50/76,621,769.25
  6. Step 6: Final answer
    x = 57,703,939.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.