Finding the Fourth Proportional to 565,461,830.40, 848,192,745.60 and 457,966,406.40
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Solution
The fourth proportional to 565,461,830.40, 848,192,745.60 and 457,966,406.40 is: 686,949,609.60
Step by Step Solution
- Step 1: Write the proportion equation
565,461,830.40 : 848,192,745.60 = 457,966,406.40 : x - Step 2: Convert to fraction form
565,461,830.40/848,192,745.60 = 457,966,406.40/x - Step 3: Cross multiply
565,461,830.40x = 848,192,745.60 × 457,966,406.40 - Step 4: Simplify right side
565,461,830.40x = 388,443,783,636,981,376 - Step 5: Solve for x
x = 388,443,783,636,981,376/565,461,830.40 - Step 6: Final answer
x = 686,949,609.60
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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.