Finding the Fourth Proportional to 12,884,853.19, 19,327,279.79 and 3,909,405.19
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Solution
The fourth proportional to 12,884,853.19, 19,327,279.79 and 3,909,405.19 is: 5,864,107.78
Step by Step Solution
- Step 1: Write the proportion equation
12,884,853.19 : 19,327,279.79 = 3,909,405.19 : x - Step 2: Convert to fraction form
12,884,853.19/19,327,279.79 = 3,909,405.19/x - Step 3: Cross multiply
12,884,853.19x = 19,327,279.79 × 3,909,405.19 - Step 4: Simplify right side
12,884,853.19x = 75,558,167,881,063.42 - Step 5: Solve for x
x = 75,558,167,881,063.42/12,884,853.19 - Step 6: Final answer
x = 5,864,107.78
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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.