Finding the Fourth Proportional to 1,945,450,556.74, 2,918,478,165.99 and 653,288,375.62
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Solution
The fourth proportional to 1,945,450,556.74, 2,918,478,165.99 and 653,288,375.62 is: 980,034,087.08
Step by Step Solution
- Step 1: Write the proportion equation
1,945,450,556.74 : 2,918,478,165.99 = 653,288,375.62 : x - Step 2: Convert to fraction form
1,945,450,556.74/2,918,478,165.99 = 653,288,375.62/x - Step 3: Cross multiply
1,945,450,556.74x = 2,918,478,165.99 × 653,288,375.62 - Step 4: Simplify right side
1,945,450,556.74x = 1,906,607,860,342,043,648 - Step 5: Solve for x
x = 1,906,607,860,342,043,648/1,945,450,556.74 - Step 6: Final answer
x = 980,034,087.08
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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.