Finding the Fourth Proportional to 312,208,628.74, 468,131,414.76 and 118,135,036.06
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Solution
The fourth proportional to 312,208,628.74, 468,131,414.76 and 118,135,036.06 is: 177,133,866.50
Step by Step Solution
- Step 1: Write the proportion equation
312,208,628.74 : 468,131,414.76 = 118,135,036.06 : x - Step 2: Convert to fraction form
312,208,628.74/468,131,414.76 = 118,135,036.06/x - Step 3: Cross multiply
312,208,628.74x = 468,131,414.76 × 118,135,036.06 - Step 4: Simplify right side
312,208,628.74x = 55,302,721,563,491,416 - Step 5: Solve for x
x = 55,302,721,563,491,416/312,208,628.74 - Step 6: Final answer
x = 177,133,866.50
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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.