Finding the Fourth Proportional to 2,801,783,576.50, 4,202,683,343.12 and 809,987,781.69
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Solution
The fourth proportional to 2,801,783,576.50, 4,202,683,343.12 and 809,987,781.69 is: 1,214,983,979.06
Step by Step Solution
- Step 1: Write the proportion equation
2,801,783,576.50 : 4,202,683,343.12 = 809,987,781.69 : x - Step 2: Convert to fraction form
2,801,783,576.50/4,202,683,343.12 = 809,987,781.69/x - Step 3: Cross multiply
2,801,783,576.50x = 4,202,683,343.12 × 809,987,781.69 - Step 4: Simplify right side
2,801,783,576.50x = 3,404,122,158,241,225,728 - Step 5: Solve for x
x = 3,404,122,158,241,225,728/2,801,783,576.50 - Step 6: Final answer
x = 1,214,983,979.06
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1.5x scale
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.