Finding the Fourth Proportional to 8,919,322,201.68, 12,305,180,964.15 and 5,106,807,591.91
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Solution
The fourth proportional to 8,919,322,201.68, 12,305,180,964.15 and 5,106,807,591.91 is: 7,045,399,879.79
Step by Step Solution
- Step 1: Write the proportion equation
8,919,322,201.68 : 12,305,180,964.15 = 5,106,807,591.91 : x - Step 2: Convert to fraction form
8,919,322,201.68/12,305,180,964.15 = 5,106,807,591.91/x - Step 3: Cross multiply
8,919,322,201.68x = 12,305,180,964.15 × 5,106,807,591.91 - Step 4: Simplify right side
8,919,322,201.68x = 62,840,191,567,547,629,568 - Step 5: Solve for x
x = 62,840,191,567,547,629,568/8,919,322,201.68 - Step 6: Final answer
x = 7,045,399,879.79
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1.5x scale
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.