Finding the Fourth Proportional to 7,517,665.68, 10,374,415.57 and 4,079,910.66
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Solution
The fourth proportional to 7,517,665.68, 10,374,415.57 and 4,079,910.66 is: 5,630,296.75
Step by Step Solution
- Step 1: Write the proportion equation
7,517,665.68 : 10,374,415.57 = 4,079,910.66 : x - Step 2: Convert to fraction form
7,517,665.68/10,374,415.57 = 4,079,910.66/x - Step 3: Cross multiply
7,517,665.68x = 10,374,415.57 × 4,079,910.66 - Step 4: Simplify right side
7,517,665.68x = 42,326,688,675,312.98 - Step 5: Solve for x
x = 42,326,688,675,312.98/7,517,665.68 - Step 6: Final answer
x = 5,630,296.75
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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.