Finding the Fourth Proportional to 664,331,408.10, 996,497,112.15 and 615,958,467.30
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Solution
The fourth proportional to 664,331,408.10, 996,497,112.15 and 615,958,467.30 is: 923,937,700.95
Step by Step Solution
- Step 1: Write the proportion equation
664,331,408.10 : 996,497,112.15 = 615,958,467.30 : x - Step 2: Convert to fraction form
664,331,408.10/996,497,112.15 = 615,958,467.30/x - Step 3: Cross multiply
664,331,408.10x = 996,497,112.15 × 615,958,467.30 - Step 4: Simplify right side
664,331,408.10x = 613,800,833,868,790,144 - Step 5: Solve for x
x = 613,800,833,868,790,144/664,331,408.10 - Step 6: Final answer
x = 923,937,700.95
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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.