Finding the Fourth Proportional to 516,224,319.19, 712,389,662.99 and 281,274,979.66
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Solution
The fourth proportional to 516,224,319.19, 712,389,662.99 and 281,274,979.66 is: 388,159,527.78
Step by Step Solution
- Step 1: Write the proportion equation
516,224,319.19 : 712,389,662.99 = 281,274,979.66 : x - Step 2: Convert to fraction form
516,224,319.19/712,389,662.99 = 281,274,979.66/x - Step 3: Cross multiply
516,224,319.19x = 712,389,662.99 × 281,274,979.66 - Step 4: Simplify right side
516,224,319.19x = 200,377,387,965,373,952 - Step 5: Solve for x
x = 200,377,387,965,373,952/516,224,319.19 - Step 6: Final answer
x = 388,159,527.78
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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.