Finding the Fourth Proportional to 256,770,689.63, 354,313,657.73 and 143,746,370.49
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Solution
The fourth proportional to 256,770,689.63, 354,313,657.73 and 143,746,370.49 is: 198,353,255.92
Step by Step Solution
- Step 1: Write the proportion equation
256,770,689.63 : 354,313,657.73 = 143,746,370.49 : x - Step 2: Convert to fraction form
256,770,689.63/354,313,657.73 = 143,746,370.49/x - Step 3: Cross multiply
256,770,689.63x = 354,313,657.73 × 143,746,370.49 - Step 4: Simplify right side
256,770,689.63x = 50,931,302,313,004,904 - Step 5: Solve for x
x = 50,931,302,313,004,904/256,770,689.63 - Step 6: Final answer
x = 198,353,255.92
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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.