Finding the Fourth Proportional to 220,208,461.14, 303,907,039.85 and 121,106,672.06
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Solution
The fourth proportional to 220,208,461.14, 303,907,039.85 and 121,106,672.06 is: 167,137,856.65
Step by Step Solution
- Step 1: Write the proportion equation
220,208,461.14 : 303,907,039.85 = 121,106,672.06 : x - Step 2: Convert to fraction form
220,208,461.14/303,907,039.85 = 121,106,672.06/x - Step 3: Cross multiply
220,208,461.14x = 303,907,039.85 × 121,106,672.06 - Step 4: Simplify right side
220,208,461.14x = 36,805,170,211,839,304 - Step 5: Solve for x
x = 36,805,170,211,839,304/220,208,461.14 - Step 6: Final answer
x = 167,137,856.65
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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.