Finding the Fourth Proportional to 212,445,020.53, 318,652,903.87 and 130,576,534.48
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Solution
The fourth proportional to 212,445,020.53, 318,652,903.87 and 130,576,534.48 is: 195,855,811.47
Step by Step Solution
- Step 1: Write the proportion equation
212,445,020.53 : 318,652,903.87 = 130,576,534.48 : x - Step 2: Convert to fraction form
212,445,020.53/318,652,903.87 = 130,576,534.48/x - Step 3: Cross multiply
212,445,020.53x = 318,652,903.87 × 130,576,534.48 - Step 4: Simplify right side
212,445,020.53x = 41,608,591,889,405,056 - Step 5: Solve for x
x = 41,608,591,889,405,056/212,445,020.53 - Step 6: Final answer
x = 195,855,811.47
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.