Finding the Fourth Proportional to 13,469,229.60, 18,587,944.16 and 7,358,051.68
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Solution
The fourth proportional to 13,469,229.60, 18,587,944.16 and 7,358,051.68 is: 10,154,333.83
Step by Step Solution
- Step 1: Write the proportion equation
13,469,229.60 : 18,587,944.16 = 7,358,051.68 : x - Step 2: Convert to fraction form
13,469,229.60/18,587,944.16 = 7,358,051.68/x - Step 3: Cross multiply
13,469,229.60x = 18,587,944.16 × 7,358,051.68 - Step 4: Simplify right side
13,469,229.60x = 136,771,053,754,234.19 - Step 5: Solve for x
x = 136,771,053,754,234.19/13,469,229.60 - Step 6: Final answer
x = 10,154,333.83
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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.