Finding the Fourth Proportional to 213,392,715.87, 294,482,246.72 and 115,607,571.87
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Solution
The fourth proportional to 213,392,715.87, 294,482,246.72 and 115,607,571.87 is: 159,538,611.07
Step by Step Solution
- Step 1: Write the proportion equation
213,392,715.87 : 294,482,246.72 = 115,607,571.87 : x - Step 2: Convert to fraction form
213,392,715.87/294,482,246.72 = 115,607,571.87/x - Step 3: Cross multiply
213,392,715.87x = 294,482,246.72 × 115,607,571.87 - Step 4: Simplify right side
213,392,715.87x = 34,044,377,501,543,432 - Step 5: Solve for x
x = 34,044,377,501,543,432/213,392,715.87 - Step 6: Final answer
x = 159,538,611.07
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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.