Finding the Fourth Proportional to 13,461,611.52, 18,576,883.20 and 7,350,021.12
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Solution
The fourth proportional to 13,461,611.52, 18,576,883.20 and 7,350,021.12 is: 10,142,952.32
Step by Step Solution
- Step 1: Write the proportion equation
13,461,611.52 : 18,576,883.20 = 7,350,021.12 : x - Step 2: Convert to fraction form
13,461,611.52/18,576,883.20 = 7,350,021.12/x - Step 3: Cross multiply
13,461,611.52x = 18,576,883.20 × 7,350,021.12 - Step 4: Simplify right side
13,461,611.52x = 136,540,483,863,773.19 - Step 5: Solve for x
x = 136,540,483,863,773.19/13,461,611.52 - Step 6: Final answer
x = 10,142,952.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.