Finding the Fourth Proportional to 19,431,513.44, 29,157,357.57 and 7,925,422.10
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Solution
The fourth proportional to 19,431,513.44, 29,157,357.57 and 7,925,422.10 is: 11,892,247.45
Step by Step Solution
- Step 1: Write the proportion equation
19,431,513.44 : 29,157,357.57 = 7,925,422.10 : x - Step 2: Convert to fraction form
19,431,513.44/29,157,357.57 = 7,925,422.10/x - Step 3: Cross multiply
19,431,513.44x = 29,157,357.57 × 7,925,422.10 - Step 4: Simplify right side
19,431,513.44x = 231,084,366,062,880.28 - Step 5: Solve for x
x = 231,084,366,062,880.28/19,431,513.44 - Step 6: Final answer
x = 11,892,247.45
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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.