Finding the Fourth Proportional to 7,891,378.68, 10,889,881.98 and 4,453,939.56
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Solution
The fourth proportional to 7,891,378.68, 10,889,881.98 and 4,453,939.56 is: 6,146,312.09
Step by Step Solution
- Step 1: Write the proportion equation
7,891,378.68 : 10,889,881.98 = 4,453,939.56 : x - Step 2: Convert to fraction form
7,891,378.68/10,889,881.98 = 4,453,939.56/x - Step 3: Cross multiply
7,891,378.68x = 10,889,881.98 × 4,453,939.56 - Step 4: Simplify right side
7,891,378.68x = 48,502,876,154,453.12 - Step 5: Solve for x
x = 48,502,876,154,453.12/7,891,378.68 - Step 6: Final answer
x = 6,146,312.09
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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.