Finding the Fourth Proportional to 121,960,416.36, 182,912,715.88 and 72,790,153.68
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Solution
The fourth proportional to 121,960,416.36, 182,912,715.88 and 72,790,153.68 is: 109,168,573.68
Step by Step Solution
- Step 1: Write the proportion equation
121,960,416.36 : 182,912,715.88 = 72,790,153.68 : x - Step 2: Convert to fraction form
121,960,416.36/182,912,715.88 = 72,790,153.68/x - Step 3: Cross multiply
121,960,416.36x = 182,912,715.88 × 72,790,153.68 - Step 4: Simplify right side
121,960,416.36x = 13,314,244,698,931,378 - Step 5: Solve for x
x = 13,314,244,698,931,378/121,960,416.36 - Step 6: Final answer
x = 109,168,573.68
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.