Finding the Fourth Proportional to 13,702,902.49, 18,908,479.78 and 7,589,800.09
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Solution
The fourth proportional to 13,702,902.49, 18,908,479.78 and 7,589,800.09 is: 10,473,079.09
Step by Step Solution
- Step 1: Write the proportion equation
13,702,902.49 : 18,908,479.78 = 7,589,800.09 : x - Step 2: Convert to fraction form
13,702,902.49/18,908,479.78 = 7,589,800.09/x - Step 3: Cross multiply
13,702,902.49x = 18,908,479.78 × 7,589,800.09 - Step 4: Simplify right side
13,702,902.49x = 143,511,581,536,007.19 - Step 5: Solve for x
x = 143,511,581,536,007.19/13,702,902.49 - Step 6: Final answer
x = 10,473,079.09
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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.