Home / 1,215,179,870-1,677,217,996.03-738,769,007.80

Finding the Fourth Proportional to 1,215,179,870, 1,677,217,996.03 and 738,769,007.80

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Solution

The fourth proportional to 1,215,179,870, 1,677,217,996.03 and 738,769,007.80 is: 1,019,665,240.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,179,870 : 1,677,217,996.03 = 738,769,007.80 : x
  2. Step 2: Convert to fraction form
    1,215,179,870/1,677,217,996.03 = 738,769,007.80/x
  3. Step 3: Cross multiply
    1,215,179,870x = 1,677,217,996.03 × 738,769,007.80
  4. Step 4: Simplify right side
    1,215,179,870x = 1,239,076,674,783,001,344
  5. Step 5: Solve for x
    x = 1,239,076,674,783,001,344/1,215,179,870
  6. Step 6: Final answer
    x = 1,019,665,240.82

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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.