Finding the Fourth Proportional to 311,630,420.10, 467,445,630.15 and 299,726,141.70
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Solution
The fourth proportional to 311,630,420.10, 467,445,630.15 and 299,726,141.70 is: 449,589,212.55
Step by Step Solution
- Step 1: Write the proportion equation
311,630,420.10 : 467,445,630.15 = 299,726,141.70 : x - Step 2: Convert to fraction form
311,630,420.10/467,445,630.15 = 299,726,141.70/x - Step 3: Cross multiply
311,630,420.10x = 467,445,630.15 × 299,726,141.70 - Step 4: Simplify right side
311,630,420.10x = 140,105,675,179,384,672 - Step 5: Solve for x
x = 140,105,675,179,384,672/311,630,420.10 - Step 6: Final answer
x = 449,589,212.55
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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.