Home / 100,415,769.81-150,554,891.37-51,136,231.92

Finding the Fourth Proportional to 100,415,769.81, 150,554,891.37 and 51,136,231.92

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Solution

The fourth proportional to 100,415,769.81, 150,554,891.37 and 51,136,231.92 is: 76,669,330.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,415,769.81 : 150,554,891.37 = 51,136,231.92 : x
  2. Step 2: Convert to fraction form
    100,415,769.81/150,554,891.37 = 51,136,231.92/x
  3. Step 3: Cross multiply
    100,415,769.81x = 150,554,891.37 × 51,136,231.92
  4. Step 4: Simplify right side
    100,415,769.81x = 7,698,809,841,786,727
  5. Step 5: Solve for x
    x = 7,698,809,841,786,727/100,415,769.81
  6. Step 6: Final answer
    x = 76,669,330.49

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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.