Finding the Fourth Proportional to 5,278,298,968.08, 7,919,168,308.92 and 2,517,568,736.40
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Solution
The fourth proportional to 5,278,298,968.08, 7,919,168,308.92 and 2,517,568,736.40 is: 3,777,173,417.69
Step by Step Solution
- Step 1: Write the proportion equation
5,278,298,968.08 : 7,919,168,308.92 = 2,517,568,736.40 : x - Step 2: Convert to fraction form
5,278,298,968.08/7,919,168,308.92 = 2,517,568,736.40/x - Step 3: Cross multiply
5,278,298,968.08x = 7,919,168,308.92 × 2,517,568,736.40 - Step 4: Simplify right side
5,278,298,968.08x = 19,937,050,552,826,650,624 - Step 5: Solve for x
x = 19,937,050,552,826,650,624/5,278,298,968.08 - Step 6: Final answer
x = 3,777,173,417.69
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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.