Home / 1,215,179,869.50-1,677,217,995.34-738,769,007.30

Finding the Fourth Proportional to 1,215,179,869.50, 1,677,217,995.34 and 738,769,007.30

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Solution

The fourth proportional to 1,215,179,869.50, 1,677,217,995.34 and 738,769,007.30 is: 1,019,665,240.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,179,869.50 : 1,677,217,995.34 = 738,769,007.30 : x
  2. Step 2: Convert to fraction form
    1,215,179,869.50/1,677,217,995.34 = 738,769,007.30/x
  3. Step 3: Cross multiply
    1,215,179,869.50x = 1,677,217,995.34 × 738,769,007.30
  4. Step 4: Simplify right side
    1,215,179,869.50x = 1,239,076,673,432,794,880
  5. Step 5: Solve for x
    x = 1,239,076,673,432,794,880/1,215,179,869.50
  6. Step 6: Final answer
    x = 1,019,665,240.13

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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.