Home / 1,215,179,867-1,677,217,991.89-738,769,004.80

Finding the Fourth Proportional to 1,215,179,867, 1,677,217,991.89 and 738,769,004.80

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Solution

The fourth proportional to 1,215,179,867, 1,677,217,991.89 and 738,769,004.80 is: 1,019,665,236.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,179,867 : 1,677,217,991.89 = 738,769,004.80 : x
  2. Step 2: Convert to fraction form
    1,215,179,867/1,677,217,991.89 = 738,769,004.80/x
  3. Step 3: Cross multiply
    1,215,179,867x = 1,677,217,991.89 × 738,769,004.80
  4. Step 4: Simplify right side
    1,215,179,867x = 1,239,076,666,692,843,776
  5. Step 5: Solve for x
    x = 1,239,076,666,692,843,776/1,215,179,867
  6. Step 6: Final answer
    x = 1,019,665,236.68

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1.5x scale

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.