Finding the Fourth Proportional to 861,528,202.11, 1,292,668,190.08 and 301,691,843.66
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Solution
The fourth proportional to 861,528,202.11, 1,292,668,190.08 and 301,691,843.66 is: 452,669,394.40
Step by Step Solution
- Step 1: Write the proportion equation
861,528,202.11 : 1,292,668,190.08 = 301,691,843.66 : x - Step 2: Convert to fraction form
861,528,202.11/1,292,668,190.08 = 301,691,843.66/x - Step 3: Cross multiply
861,528,202.11x = 1,292,668,190.08 × 301,691,843.66 - Step 4: Simplify right side
861,528,202.11x = 389,987,449,508,348,032 - Step 5: Solve for x
x = 389,987,449,508,348,032/861,528,202.11 - Step 6: Final answer
x = 452,669,394.40
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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.