Finding the Fourth Proportional to 4,087,681.92, 5,640,731.01 and 2,455,119.18
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Solution
The fourth proportional to 4,087,681.92, 5,640,731.01 and 2,455,119.18 is: 3,387,902.28
Step by Step Solution
- Step 1: Write the proportion equation
4,087,681.92 : 5,640,731.01 = 2,455,119.18 : x - Step 2: Convert to fraction form
4,087,681.92/5,640,731.01 = 2,455,119.18/x - Step 3: Cross multiply
4,087,681.92x = 5,640,731.01 × 2,455,119.18 - Step 4: Simplify right side
4,087,681.92x = 13,848,666,891,871.77 - Step 5: Solve for x
x = 13,848,666,891,871.77/4,087,681.92 - Step 6: Final answer
x = 3,387,902.28
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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.