Finding the Fourth Proportional to 355,085,058.93, 489,996,237.29 and 196,305,668.63
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Solution
The fourth proportional to 355,085,058.93, 489,996,237.29 and 196,305,668.63 is: 270,890,133.42
Step by Step Solution
- Step 1: Write the proportion equation
355,085,058.93 : 489,996,237.29 = 196,305,668.63 : x - Step 2: Convert to fraction form
355,085,058.93/489,996,237.29 = 196,305,668.63/x - Step 3: Cross multiply
355,085,058.93x = 489,996,237.29 × 196,305,668.63 - Step 4: Simplify right side
355,085,058.93x = 96,189,038,987,397,584 - Step 5: Solve for x
x = 96,189,038,987,397,584/355,085,058.93 - Step 6: Final answer
x = 270,890,133.42
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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.