Finding the Fourth Proportional to 7,465,497.60, 11,198,246.40 and 7,299,609.60
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Solution
The fourth proportional to 7,465,497.60, 11,198,246.40 and 7,299,609.60 is: 10,949,414.40
Step by Step Solution
- Step 1: Write the proportion equation
7,465,497.60 : 11,198,246.40 = 7,299,609.60 : x - Step 2: Convert to fraction form
7,465,497.60/11,198,246.40 = 7,299,609.60/x - Step 3: Cross multiply
7,465,497.60x = 11,198,246.40 × 7,299,609.60 - Step 4: Simplify right side
7,465,497.60x = 81,742,826,924,605.44 - Step 5: Solve for x
x = 81,742,826,924,605.44/7,465,497.60 - Step 6: Final answer
x = 10,949,414.40
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Double scale
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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.