Finding the Fourth Proportional to 144,373,789.41, 199,244,255.99 and 81,655,447.62
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Solution
The fourth proportional to 144,373,789.41, 199,244,255.99 and 81,655,447.62 is: 112,689,283.66
Step by Step Solution
- Step 1: Write the proportion equation
144,373,789.41 : 199,244,255.99 = 81,655,447.62 : x - Step 2: Convert to fraction form
144,373,789.41/199,244,255.99 = 81,655,447.62/x - Step 3: Cross multiply
144,373,789.41x = 199,244,255.99 × 81,655,447.62 - Step 4: Simplify right side
144,373,789.41x = 16,269,378,908,577,318 - Step 5: Solve for x
x = 16,269,378,908,577,318/144,373,789.41 - Step 6: Final answer
x = 112,689,283.66
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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.