Finding the Fourth Proportional to 684,361,108.56, 1,026,131,709.42 and 217,821,010.08
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Solution
The fourth proportional to 684,361,108.56, 1,026,131,709.42 and 217,821,010.08 is: 326,601,033.61
Step by Step Solution
- Step 1: Write the proportion equation
684,361,108.56 : 1,026,131,709.42 = 217,821,010.08 : x - Step 2: Convert to fraction form
684,361,108.56/1,026,131,709.42 = 217,821,010.08/x - Step 3: Cross multiply
684,361,108.56x = 1,026,131,709.42 × 217,821,010.08 - Step 4: Simplify right side
684,361,108.56x = 223,513,045,420,981,440 - Step 5: Solve for x
x = 223,513,045,420,981,440/684,361,108.56 - Step 6: Final answer
x = 326,601,033.61
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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.