Finding the Fourth Proportional to 143,859,152.28, 198,525,256.74 and 80,278,824.80
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Solution
The fourth proportional to 143,859,152.28, 198,525,256.74 and 80,278,824.80 is: 110,784,569.84
Step by Step Solution
- Step 1: Write the proportion equation
143,859,152.28 : 198,525,256.74 = 80,278,824.80 : x - Step 2: Convert to fraction form
143,859,152.28/198,525,256.74 = 80,278,824.80/x - Step 3: Cross multiply
143,859,152.28x = 198,525,256.74 × 80,278,824.80 - Step 4: Simplify right side
143,859,152.28x = 15,937,374,303,212,854 - Step 5: Solve for x
x = 15,937,374,303,212,854/143,859,152.28 - Step 6: Final answer
x = 110,784,569.84
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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.