Finding the Fourth Proportional to 3,998,346,527.09, 5,517,891,652.77 and 2,214,199,980.11
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Solution
The fourth proportional to 3,998,346,527.09, 5,517,891,652.77 and 2,214,199,980.11 is: 3,055,692,022.95
Step by Step Solution
- Step 1: Write the proportion equation
3,998,346,527.09 : 5,517,891,652.77 = 2,214,199,980.11 : x - Step 2: Convert to fraction form
3,998,346,527.09/5,517,891,652.77 = 2,214,199,980.11/x - Step 3: Cross multiply
3,998,346,527.09x = 5,517,891,652.77 × 2,214,199,980.11 - Step 4: Simplify right side
3,998,346,527.09x = 12,217,715,587,826,266,112 - Step 5: Solve for x
x = 12,217,715,587,826,266,112/3,998,346,527.09 - Step 6: Final answer
x = 3,055,692,022.95
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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.