Finding the Fourth Proportional to 438,290,747.93, 604,841,821.68 and 237,347,972.78
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Solution
The fourth proportional to 438,290,747.93, 604,841,821.68 and 237,347,972.78 is: 327,540,521.69
Step by Step Solution
- Step 1: Write the proportion equation
438,290,747.93 : 604,841,821.68 = 237,347,972.78 : x - Step 2: Convert to fraction form
438,290,747.93/604,841,821.68 = 237,347,972.78/x - Step 3: Cross multiply
438,290,747.93x = 604,841,821.68 × 237,347,972.78 - Step 4: Simplify right side
438,290,747.93x = 143,557,980,225,286,032 - Step 5: Solve for x
x = 143,557,980,225,286,032/438,290,747.93 - Step 6: Final answer
x = 327,540,521.69
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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.