Finding the Fourth Proportional to 8,328,513.68, 11,493,270.09 and 4,657,388.15
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Solution
The fourth proportional to 8,328,513.68, 11,493,270.09 and 4,657,388.15 is: 6,427,151.58
Step by Step Solution
- Step 1: Write the proportion equation
8,328,513.68 : 11,493,270.09 = 4,657,388.15 : x - Step 2: Convert to fraction form
8,328,513.68/11,493,270.09 = 4,657,388.15/x - Step 3: Cross multiply
8,328,513.68x = 11,493,270.09 × 4,657,388.15 - Step 4: Simplify right side
8,328,513.68x = 53,528,619,864,449.08 - Step 5: Solve for x
x = 53,528,619,864,449.08/8,328,513.68 - Step 6: Final answer
x = 6,427,151.58
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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.