Finding the Fourth Proportional to 128,317,709.54, 192,399,698.05 and 40,841,441.08
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Solution
The fourth proportional to 128,317,709.54, 192,399,698.05 and 40,841,441.08 is: 61,237,696.33
Step by Step Solution
- Step 1: Write the proportion equation
128,317,709.54 : 192,399,698.05 = 40,841,441.08 : x - Step 2: Convert to fraction form
128,317,709.54/192,399,698.05 = 40,841,441.08/x - Step 3: Cross multiply
128,317,709.54x = 192,399,698.05 × 40,841,441.08 - Step 4: Simplify right side
128,317,709.54x = 7,857,880,931,135,764 - Step 5: Solve for x
x = 7,857,880,931,135,764/128,317,709.54 - Step 6: Final answer
x = 61,237,696.33
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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.