Finding the Fourth Proportional to 212,807,358.40, 318,952,241.94 and 150,576,602.20
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Solution
The fourth proportional to 212,807,358.40, 318,952,241.94 and 150,576,602.20 is: 225,681,786.65
Step by Step Solution
- Step 1: Write the proportion equation
212,807,358.40 : 318,952,241.94 = 150,576,602.20 : x - Step 2: Convert to fraction form
212,807,358.40/318,952,241.94 = 150,576,602.20/x - Step 3: Cross multiply
212,807,358.40x = 318,952,241.94 × 150,576,602.20 - Step 4: Simplify right side
212,807,358.40x = 48,026,744,855,397,536 - Step 5: Solve for x
x = 48,026,744,855,397,536/212,807,358.40 - Step 6: Final answer
x = 225,681,786.65
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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.