Finding the Fourth Proportional to 7,261,985.08, 10,021,142.28 and 3,998,179.90
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Solution
The fourth proportional to 7,261,985.08, 10,021,142.28 and 3,998,179.90 is: 5,517,269.62
Step by Step Solution
- Step 1: Write the proportion equation
7,261,985.08 : 10,021,142.28 = 3,998,179.90 : x - Step 2: Convert to fraction form
7,261,985.08/10,021,142.28 = 3,998,179.90/x - Step 3: Cross multiply
7,261,985.08x = 10,021,142.28 × 3,998,179.90 - Step 4: Simplify right side
7,261,985.08x = 40,066,329,638,936.17 - Step 5: Solve for x
x = 40,066,329,638,936.17/7,261,985.08 - Step 6: Final answer
x = 5,517,269.62
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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.