Finding the Fourth Proportional to 864,102,618.36, 1,296,157,290.27 and 209,052,593.56
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Solution
The fourth proportional to 864,102,618.36, 1,296,157,290.27 and 209,052,593.56 is: 313,579,703.89
Step by Step Solution
- Step 1: Write the proportion equation
864,102,618.36 : 1,296,157,290.27 = 209,052,593.56 : x - Step 2: Convert to fraction form
864,102,618.36/1,296,157,290.27 = 209,052,593.56/x - Step 3: Cross multiply
864,102,618.36x = 1,296,157,290.27 × 209,052,593.56 - Step 4: Simplify right side
864,102,618.36x = 270,965,043,192,645,248 - Step 5: Solve for x
x = 270,965,043,192,645,248/864,102,618.36 - Step 6: Final answer
x = 313,579,703.89
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1.5x scale
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.