Finding the Fourth Proportional to 438,319,940.99, 604,859,942.03 and 240,082,317.38
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Solution
The fourth proportional to 438,319,940.99, 604,859,942.03 and 240,082,317.38 is: 331,301,779.80
Step by Step Solution
- Step 1: Write the proportion equation
438,319,940.99 : 604,859,942.03 = 240,082,317.38 : x - Step 2: Convert to fraction form
438,319,940.99/604,859,942.03 = 240,082,317.38/x - Step 3: Cross multiply
438,319,940.99x = 604,859,942.03 × 240,082,317.38 - Step 4: Simplify right side
438,319,940.99x = 145,216,176,568,670,144 - Step 5: Solve for x
x = 145,216,176,568,670,144/438,319,940.99 - Step 6: Final answer
x = 331,301,779.80
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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.