Finding the Fourth Proportional to 308,098,471.13, 425,186,172.61 and 168,869,589.65
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Solution
The fourth proportional to 308,098,471.13, 425,186,172.61 and 168,869,589.65 is: 233,045,669.55
Step by Step Solution
- Step 1: Write the proportion equation
308,098,471.13 : 425,186,172.61 = 168,869,589.65 : x - Step 2: Convert to fraction form
308,098,471.13/425,186,172.61 = 168,869,589.65/x - Step 3: Cross multiply
308,098,471.13x = 425,186,172.61 × 168,869,589.65 - Step 4: Simplify right side
308,098,471.13x = 71,801,014,492,551,120 - Step 5: Solve for x
x = 71,801,014,492,551,120/308,098,471.13 - Step 6: Final answer
x = 233,045,669.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.