Finding the Fourth Proportional to 121,017,538.49, 166,983,368.42 and 68,086,900.62
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Solution
The fourth proportional to 121,017,538.49, 166,983,368.42 and 68,086,900.62 is: 93,948,200.84
Step by Step Solution
- Step 1: Write the proportion equation
121,017,538.49 : 166,983,368.42 = 68,086,900.62 : x - Step 2: Convert to fraction form
121,017,538.49/166,983,368.42 = 68,086,900.62/x - Step 3: Cross multiply
121,017,538.49x = 166,983,368.42 × 68,086,900.62 - Step 4: Simplify right side
121,017,538.49x = 11,369,380,010,464,952 - Step 5: Solve for x
x = 11,369,380,010,464,952/121,017,538.49 - Step 6: Final answer
x = 93,948,200.84
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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.