Finding the Fourth Proportional to 5,728,918.48, 7,905,985.81 and 3,281,528.18
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Solution
The fourth proportional to 5,728,918.48, 7,905,985.81 and 3,281,528.18 is: 4,528,553.75
Step by Step Solution
- Step 1: Write the proportion equation
5,728,918.48 : 7,905,985.81 = 3,281,528.18 : x - Step 2: Convert to fraction form
5,728,918.48/7,905,985.81 = 3,281,528.18/x - Step 3: Cross multiply
5,728,918.48x = 7,905,985.81 × 3,281,528.18 - Step 4: Simplify right side
5,728,918.48x = 25,943,715,237,756.27 - Step 5: Solve for x
x = 25,943,715,237,756.27/5,728,918.48 - Step 6: Final answer
x = 4,528,553.75
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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.