Finding the Fourth Proportional to 18,385,543.23, 25,371,740.12 and 10,126,374.63
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Solution
The fourth proportional to 18,385,543.23, 25,371,740.12 and 10,126,374.63 is: 13,974,226.50
Step by Step Solution
- Step 1: Write the proportion equation
18,385,543.23 : 25,371,740.12 = 10,126,374.63 : x - Step 2: Convert to fraction form
18,385,543.23/25,371,740.12 = 10,126,374.63/x - Step 3: Cross multiply
18,385,543.23x = 25,371,740.12 × 10,126,374.63 - Step 4: Simplify right side
18,385,543.23x = 256,923,745,419,489.28 - Step 5: Solve for x
x = 256,923,745,419,489.28/18,385,543.23 - Step 6: Final answer
x = 13,974,226.50
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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.