Finding the Fourth Proportional to 248,279,145.68, 342,635,851.08 and 138,270,858.32
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Solution
The fourth proportional to 248,279,145.68, 342,635,851.08 and 138,270,858.32 is: 190,819,704.53
Step by Step Solution
- Step 1: Write the proportion equation
248,279,145.68 : 342,635,851.08 = 138,270,858.32 : x - Step 2: Convert to fraction form
248,279,145.68/342,635,851.08 = 138,270,858.32/x - Step 3: Cross multiply
248,279,145.68x = 342,635,851.08 × 138,270,858.32 - Step 4: Simplify right side
248,279,145.68x = 47,376,553,220,035,296 - Step 5: Solve for x
x = 47,376,553,220,035,296/248,279,145.68 - Step 6: Final answer
x = 190,819,704.53
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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.