Finding the Fourth Proportional to 5,476,689.45, 7,555,316.99 and 3,543,580.17
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Solution
The fourth proportional to 5,476,689.45, 7,555,316.99 and 3,543,580.17 is: 4,888,513.71
Step by Step Solution
- Step 1: Write the proportion equation
5,476,689.45 : 7,555,316.99 = 3,543,580.17 : x - Step 2: Convert to fraction form
5,476,689.45/7,555,316.99 = 3,543,580.17/x - Step 3: Cross multiply
5,476,689.45x = 7,555,316.99 × 3,543,580.17 - Step 4: Simplify right side
5,476,689.45x = 26,772,871,446,110.19 - Step 5: Solve for x
x = 26,772,871,446,110.19/5,476,689.45 - Step 6: Final answer
x = 4,888,513.71
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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.