Finding the Fourth Proportional to 2,649,626,214.98, 3,975,612,996.68 and 1,388,790,687.23
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Solution
The fourth proportional to 2,649,626,214.98, 3,975,612,996.68 and 1,388,790,687.23 is: 2,083,801,207.35
Step by Step Solution
- Step 1: Write the proportion equation
2,649,626,214.98 : 3,975,612,996.68 = 1,388,790,687.23 : x - Step 2: Convert to fraction form
2,649,626,214.98/3,975,612,996.68 = 1,388,790,687.23/x - Step 3: Cross multiply
2,649,626,214.98x = 3,975,612,996.68 × 1,388,790,687.23 - Step 4: Simplify right side
2,649,626,214.98x = 5,521,294,305,797,742,592 - Step 5: Solve for x
x = 5,521,294,305,797,742,592/2,649,626,214.98 - Step 6: Final answer
x = 2,083,801,207.35
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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.