Finding the Fourth Proportional to 849,786,212.80, 1,274,679,319.20 and 504,562,139.20
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Solution
The fourth proportional to 849,786,212.80, 1,274,679,319.20 and 504,562,139.20 is: 756,843,208.80
Step by Step Solution
- Step 1: Write the proportion equation
849,786,212.80 : 1,274,679,319.20 = 504,562,139.20 : x - Step 2: Convert to fraction form
849,786,212.80/1,274,679,319.20 = 504,562,139.20/x - Step 3: Cross multiply
849,786,212.80x = 1,274,679,319.20 × 504,562,139.20 - Step 4: Simplify right side
849,786,212.80x = 643,154,924,089,551,616 - Step 5: Solve for x
x = 643,154,924,089,551,616/849,786,212.80 - Step 6: Final answer
x = 756,843,208.80
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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.