Finding the Fourth Proportional to 205,493,891.06, 283,622,767.38 and 121,908,416.96
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Solution
The fourth proportional to 205,493,891.06, 283,622,767.38 and 121,908,416.96 is: 168,258,055.78
Step by Step Solution
- Step 1: Write the proportion equation
205,493,891.06 : 283,622,767.38 = 121,908,416.96 : x - Step 2: Convert to fraction form
205,493,891.06/283,622,767.38 = 121,908,416.96/x - Step 3: Cross multiply
205,493,891.06x = 283,622,767.38 × 121,908,416.96 - Step 4: Simplify right side
205,493,891.06x = 34,576,002,585,819,184 - Step 5: Solve for x
x = 34,576,002,585,819,184/205,493,891.06 - Step 6: Final answer
x = 168,258,055.78
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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.