Finding the Fourth Proportional to 684,361,147.68, 1,026,131,767.92 and 217,821,048.96
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Solution
The fourth proportional to 684,361,147.68, 1,026,131,767.92 and 217,821,048.96 is: 326,601,091.86
Step by Step Solution
- Step 1: Write the proportion equation
684,361,147.68 : 1,026,131,767.92 = 217,821,048.96 : x - Step 2: Convert to fraction form
684,361,147.68/1,026,131,767.92 = 217,821,048.96/x - Step 3: Cross multiply
684,361,147.68x = 1,026,131,767.92 × 217,821,048.96 - Step 4: Simplify right side
684,361,147.68x = 223,513,098,059,513,664 - Step 5: Solve for x
x = 223,513,098,059,513,664/684,361,147.68 - Step 6: Final answer
x = 326,601,091.86
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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.