Finding the Fourth Proportional to 209,645,924.06, 289,324,319 and 115,559,858.80
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Solution
The fourth proportional to 209,645,924.06, 289,324,319 and 115,559,858.80 is: 159,479,739.95
Step by Step Solution
- Step 1: Write the proportion equation
209,645,924.06 : 289,324,319 = 115,559,858.80 : x - Step 2: Convert to fraction form
209,645,924.06/289,324,319 = 115,559,858.80/x - Step 3: Cross multiply
209,645,924.06x = 289,324,319 × 115,559,858.80 - Step 4: Simplify right side
209,645,924.06x = 33,434,277,451,046,156 - Step 5: Solve for x
x = 33,434,277,451,046,156/209,645,924.06 - Step 6: Final answer
x = 159,479,739.95
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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.