Finding the Fourth Proportional to 121,017,542, 166,983,373.24 and 68,086,904.12
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Solution
The fourth proportional to 121,017,542, 166,983,373.24 and 68,086,904.12 is: 93,948,205.65
Step by Step Solution
- Step 1: Write the proportion equation
121,017,542 : 166,983,373.24 = 68,086,904.12 : x - Step 2: Convert to fraction form
121,017,542/166,983,373.24 = 68,086,904.12/x - Step 3: Cross multiply
121,017,542x = 166,983,373.24 × 68,086,904.12 - Step 4: Simplify right side
121,017,542x = 11,369,380,923,426,056 - Step 5: Solve for x
x = 11,369,380,923,426,056/121,017,542 - Step 6: Final answer
x = 93,948,205.65
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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.