Finding the Fourth Proportional to 6,623,082.79, 9,139,936.62 and 4,009,552.18
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Solution
The fourth proportional to 6,623,082.79, 9,139,936.62 and 4,009,552.18 is: 5,533,231.88
Step by Step Solution
- Step 1: Write the proportion equation
6,623,082.79 : 9,139,936.62 = 4,009,552.18 : x - Step 2: Convert to fraction form
6,623,082.79/9,139,936.62 = 4,009,552.18/x - Step 3: Cross multiply
6,623,082.79x = 9,139,936.62 × 4,009,552.18 - Step 4: Simplify right side
6,623,082.79x = 36,647,052,791,968.81 - Step 5: Solve for x
x = 36,647,052,791,968.81/6,623,082.79 - Step 6: Final answer
x = 5,533,231.88
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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.