Finding the Fourth Proportional to 670,311,389.80, 1,005,504,850.54 and 203,987,979.44
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Solution
The fourth proportional to 670,311,389.80, 1,005,504,850.54 and 203,987,979.44 is: 305,993,461.99
Step by Step Solution
- Step 1: Write the proportion equation
670,311,389.80 : 1,005,504,850.54 = 203,987,979.44 : x - Step 2: Convert to fraction form
670,311,389.80/1,005,504,850.54 = 203,987,979.44/x - Step 3: Cross multiply
670,311,389.80x = 1,005,504,850.54 × 203,987,979.44 - Step 4: Simplify right side
670,311,389.80x = 205,110,902,778,773,792 - Step 5: Solve for x
x = 205,110,902,778,773,792/670,311,389.80 - Step 6: Final answer
x = 305,993,461.99
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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.