Finding the Fourth Proportional to 12,344,968.52, 18,442,368.95 and 7,991,553.24
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Solution
The fourth proportional to 12,344,968.52, 18,442,368.95 and 7,991,553.24 is: 11,938,724.12
Step by Step Solution
- Step 1: Write the proportion equation
12,344,968.52 : 18,442,368.95 = 7,991,553.24 : x - Step 2: Convert to fraction form
12,344,968.52/18,442,368.95 = 7,991,553.24/x - Step 3: Cross multiply
12,344,968.52x = 18,442,368.95 × 7,991,553.24 - Step 4: Simplify right side
12,344,968.52x = 147,383,173,355,626.78 - Step 5: Solve for x
x = 147,383,173,355,626.78/12,344,968.52 - Step 6: Final answer
x = 11,938,724.12
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.