Finding the Fourth Proportional to 331,994,471.40, 497,991,707.10 and 217,332,685.80
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Solution
The fourth proportional to 331,994,471.40, 497,991,707.10 and 217,332,685.80 is: 325,999,028.70
Step by Step Solution
- Step 1: Write the proportion equation
331,994,471.40 : 497,991,707.10 = 217,332,685.80 : x - Step 2: Convert to fraction form
331,994,471.40/497,991,707.10 = 217,332,685.80/x - Step 3: Cross multiply
331,994,471.40x = 497,991,707.10 × 217,332,685.80 - Step 4: Simplify right side
331,994,471.40x = 108,229,875,210,169,936 - Step 5: Solve for x
x = 108,229,875,210,169,936/331,994,471.40 - Step 6: Final answer
x = 325,999,028.70
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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.