Finding the Fourth Proportional to 138,271,497.68, 190,812,409.51 and 75,546,245.75
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Solution
The fourth proportional to 138,271,497.68, 190,812,409.51 and 75,546,245.75 is: 104,252,585.84
Step by Step Solution
- Step 1: Write the proportion equation
138,271,497.68 : 190,812,409.51 = 75,546,245.75 : x - Step 2: Convert to fraction form
138,271,497.68/190,812,409.51 = 75,546,245.75/x - Step 3: Cross multiply
138,271,497.68x = 190,812,409.51 × 75,546,245.75 - Step 4: Simplify right side
138,271,497.68x = 14,415,161,181,063,760 - Step 5: Solve for x
x = 14,415,161,181,063,760/138,271,497.68 - Step 6: Final answer
x = 104,252,585.84
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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.