Finding the Fourth Proportional to 220,208,471.10, 303,907,053.57 and 121,106,682
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Solution
The fourth proportional to 220,208,471.10, 303,907,053.57 and 121,106,682 is: 167,137,870.36
Step by Step Solution
- Step 1: Write the proportion equation
220,208,471.10 : 303,907,053.57 = 121,106,682 : x - Step 2: Convert to fraction form
220,208,471.10/303,907,053.57 = 121,106,682/x - Step 3: Cross multiply
220,208,471.10x = 303,907,053.57 × 121,106,682 - Step 4: Simplify right side
220,208,471.10x = 36,805,174,894,258,952 - Step 5: Solve for x
x = 36,805,174,894,258,952/220,208,471.10 - Step 6: Final answer
x = 167,137,870.36
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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.