Finding the Fourth Proportional to 198,782,599.84, 273,711,594.09 and 198,208,643.56
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Solution
The fourth proportional to 198,782,599.84, 273,711,594.09 and 198,208,643.56 is: 272,921,291.07
Step by Step Solution
- Step 1: Write the proportion equation
198,782,599.84 : 273,711,594.09 = 198,208,643.56 : x - Step 2: Convert to fraction form
198,782,599.84/273,711,594.09 = 198,208,643.56/x - Step 3: Cross multiply
198,782,599.84x = 273,711,594.09 × 198,208,643.56 - Step 4: Simplify right side
198,782,599.84x = 54,252,003,791,224,208 - Step 5: Solve for x
x = 54,252,003,791,224,208/198,782,599.84 - Step 6: Final answer
x = 272,921,291.07
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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.