Finding the Fourth Proportional to 647,036,194.70, 970,554,292.05 and 284,239,138.70
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Solution
The fourth proportional to 647,036,194.70, 970,554,292.05 and 284,239,138.70 is: 426,358,708.05
Step by Step Solution
- Step 1: Write the proportion equation
647,036,194.70 : 970,554,292.05 = 284,239,138.70 : x - Step 2: Convert to fraction form
647,036,194.70/970,554,292.05 = 284,239,138.70/x - Step 3: Cross multiply
647,036,194.70x = 970,554,292.05 × 284,239,138.70 - Step 4: Simplify right side
647,036,194.70x = 275,869,516,033,880,224 - Step 5: Solve for x
x = 275,869,516,033,880,224/647,036,194.70 - Step 6: Final answer
x = 426,358,708.05
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Double scale
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Similar ratio
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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.