Finding the Fourth Proportional to 443,232,151.80, 664,848,227.70 and 430,477,567.80
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Solution
The fourth proportional to 443,232,151.80, 664,848,227.70 and 430,477,567.80 is: 645,716,351.70
Step by Step Solution
- Step 1: Write the proportion equation
443,232,151.80 : 664,848,227.70 = 430,477,567.80 : x - Step 2: Convert to fraction form
443,232,151.80/664,848,227.70 = 430,477,567.80/x - Step 3: Cross multiply
443,232,151.80x = 664,848,227.70 × 430,477,567.80 - Step 4: Simplify right side
443,232,151.80x = 286,202,248,016,436,608 - Step 5: Solve for x
x = 286,202,248,016,436,608/443,232,151.80 - Step 6: Final answer
x = 645,716,351.70
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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.