Finding the Fourth Proportional to 470,283,821.73, 648,035,388.81 and 363,790,548.81
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Solution
The fourth proportional to 470,283,821.73, 648,035,388.81 and 363,790,548.81 is: 501,291,217.88
Step by Step Solution
- Step 1: Write the proportion equation
470,283,821.73 : 648,035,388.81 = 363,790,548.81 : x - Step 2: Convert to fraction form
470,283,821.73/648,035,388.81 = 363,790,548.81/x - Step 3: Cross multiply
470,283,821.73x = 648,035,388.81 × 363,790,548.81 - Step 4: Simplify right side
470,283,821.73x = 235,749,149,743,491,616 - Step 5: Solve for x
x = 235,749,149,743,491,616/470,283,821.73 - Step 6: Final answer
x = 501,291,217.88
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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.