Finding the Fourth Proportional to 79,011,919,517.62, 109,036,556,909.49 and 42,882,952,497.07
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Solution
The fourth proportional to 79,011,919,517.62, 109,036,556,909.49 and 42,882,952,497.07 is: 59,178,533,048.43
Step by Step Solution
- Step 1: Write the proportion equation
79,011,919,517.62 : 109,036,556,909.49 = 42,882,952,497.07 : x - Step 2: Convert to fraction form
79,011,919,517.62/109,036,556,909.49 = 42,882,952,497.07/x - Step 3: Cross multiply
79,011,919,517.62x = 109,036,556,909.49 × 42,882,952,497.07 - Step 4: Simplify right side
79,011,919,517.62x = 4,675,809,490,393,729,335,296 - Step 5: Solve for x
x = 4,675,809,490,393,729,335,296/79,011,919,517.62 - Step 6: Final answer
x = 59,178,533,048.43
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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.