Finding the Fourth Proportional to 10,365,538.11, 15,548,307.17 and 5,313,626.43
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Solution
The fourth proportional to 10,365,538.11, 15,548,307.17 and 5,313,626.43 is: 7,970,439.65
Step by Step Solution
- Step 1: Write the proportion equation
10,365,538.11 : 15,548,307.17 = 5,313,626.43 : x - Step 2: Convert to fraction form
10,365,538.11/15,548,307.17 = 5,313,626.43/x - Step 3: Cross multiply
10,365,538.11x = 15,548,307.17 × 5,313,626.43 - Step 4: Simplify right side
10,365,538.11x = 82,617,895,893,702.36 - Step 5: Solve for x
x = 82,617,895,893,702.36/10,365,538.11 - Step 6: Final answer
x = 7,970,439.65
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Double scale
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.