Finding the Fourth Proportional to 311,861,887.97, 468,252,688.35 and 173,956,934.28
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Solution
The fourth proportional to 311,861,887.97, 468,252,688.35 and 173,956,934.28 is: 261,191,909.86
Step by Step Solution
- Step 1: Write the proportion equation
311,861,887.97 : 468,252,688.35 = 173,956,934.28 : x - Step 2: Convert to fraction form
311,861,887.97/468,252,688.35 = 173,956,934.28/x - Step 3: Cross multiply
311,861,887.97x = 468,252,688.35 × 173,956,934.28 - Step 4: Simplify right side
311,861,887.97x = 81,455,802,132,114,896 - Step 5: Solve for x
x = 81,455,802,132,114,896/311,861,887.97 - Step 6: Final answer
x = 261,191,909.86
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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.