Finding the Fourth Proportional to 7,720,131,245.24, 11,578,283,679.72 and 2,199,437,106.68
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Solution
The fourth proportional to 7,720,131,245.24, 11,578,283,679.72 and 2,199,437,106.68 is: 3,298,610,599.73
Step by Step Solution
- Step 1: Write the proportion equation
7,720,131,245.24 : 11,578,283,679.72 = 2,199,437,106.68 : x - Step 2: Convert to fraction form
7,720,131,245.24/11,578,283,679.72 = 2,199,437,106.68/x - Step 3: Cross multiply
7,720,131,245.24x = 11,578,283,679.72 × 2,199,437,106.68 - Step 4: Simplify right side
7,720,131,245.24x = 25,465,706,756,843,618,304 - Step 5: Solve for x
x = 25,465,706,756,843,618,304/7,720,131,245.24 - Step 6: Final answer
x = 3,298,610,599.73
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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.