Finding the Fourth Proportional to 8,135,313,623.70, 12,202,970,435.55 and 7,645,537,598.10
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Solution
The fourth proportional to 8,135,313,623.70, 12,202,970,435.55 and 7,645,537,598.10 is: 11,468,306,397.15
Step by Step Solution
- Step 1: Write the proportion equation
8,135,313,623.70 : 12,202,970,435.55 = 7,645,537,598.10 : x - Step 2: Convert to fraction form
8,135,313,623.70/12,202,970,435.55 = 7,645,537,598.10/x - Step 3: Cross multiply
8,135,313,623.70x = 12,202,970,435.55 × 7,645,537,598.10 - Step 4: Simplify right side
8,135,313,623.70x = 93,298,269,273,500,254,208 - Step 5: Solve for x
x = 93,298,269,273,500,254,208/8,135,313,623.70 - Step 6: Final answer
x = 11,468,306,397.15
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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.