Finding the Fourth Proportional to 7,156,769.68, 9,876,365.64 and 3,893,583.44
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Solution
The fourth proportional to 7,156,769.68, 9,876,365.64 and 3,893,583.44 is: 5,373,157.92
Step by Step Solution
- Step 1: Write the proportion equation
7,156,769.68 : 9,876,365.64 = 3,893,583.44 : x - Step 2: Convert to fraction form
7,156,769.68/9,876,365.64 = 3,893,583.44/x - Step 3: Cross multiply
7,156,769.68x = 9,876,365.64 × 3,893,583.44 - Step 4: Simplify right side
7,156,769.68x = 38,454,453,703,289 - Step 5: Solve for x
x = 38,454,453,703,289/7,156,769.68 - Step 6: Final answer
x = 5,373,157.92
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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.