Finding the Fourth Proportional to 39,172,571.60, 58,758,857.40 and 38,920,629.20
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Solution
The fourth proportional to 39,172,571.60, 58,758,857.40 and 38,920,629.20 is: 58,380,943.80
Step by Step Solution
- Step 1: Write the proportion equation
39,172,571.60 : 58,758,857.40 = 38,920,629.20 : x - Step 2: Convert to fraction form
39,172,571.60/58,758,857.40 = 38,920,629.20/x - Step 3: Cross multiply
39,172,571.60x = 58,758,857.40 × 38,920,629.20 - Step 4: Simplify right side
39,172,571.60x = 2,286,931,701,081,076 - Step 5: Solve for x
x = 2,286,931,701,081,076/39,172,571.60 - Step 6: Final answer
x = 58,380,943.80
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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.