Finding the Fourth Proportional to 603,654,331.70, 905,481,497.55 and 482,721,979.70
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Solution
The fourth proportional to 603,654,331.70, 905,481,497.55 and 482,721,979.70 is: 724,082,969.55
Step by Step Solution
- Step 1: Write the proportion equation
603,654,331.70 : 905,481,497.55 = 482,721,979.70 : x - Step 2: Convert to fraction form
603,654,331.70/905,481,497.55 = 482,721,979.70/x - Step 3: Cross multiply
603,654,331.70x = 905,481,497.55 × 482,721,979.70 - Step 4: Simplify right side
603,654,331.70x = 437,095,821,079,056,640 - Step 5: Solve for x
x = 437,095,821,079,056,640/603,654,331.70 - Step 6: Final answer
x = 724,082,969.55
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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.