Finding the Fourth Proportional to 205,090,253.49, 307,667,420.97 and 66,883,716.44
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Solution
The fourth proportional to 205,090,253.49, 307,667,420.97 and 66,883,716.44 is: 100,336,023.74
Step by Step Solution
- Step 1: Write the proportion equation
205,090,253.49 : 307,667,420.97 = 66,883,716.44 : x - Step 2: Convert to fraction form
205,090,253.49/307,667,420.97 = 66,883,716.44/x - Step 3: Cross multiply
205,090,253.49x = 307,667,420.97 × 66,883,716.44 - Step 4: Simplify right side
205,090,253.49x = 20,577,940,543,455,376 - Step 5: Solve for x
x = 20,577,940,543,455,376/205,090,253.49 - Step 6: Final answer
x = 100,336,023.74
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1.5x scale
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.