Finding the Fourth Proportional to 209,557,423.95, 289,204,529.49 and 121,474,161.87
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Solution
The fourth proportional to 209,557,423.95, 289,204,529.49 and 121,474,161.87 is: 167,643,203.31
Step by Step Solution
- Step 1: Write the proportion equation
209,557,423.95 : 289,204,529.49 = 121,474,161.87 : x - Step 2: Convert to fraction form
209,557,423.95/289,204,529.49 = 121,474,161.87/x - Step 3: Cross multiply
209,557,423.95x = 289,204,529.49 × 121,474,161.87 - Step 4: Simplify right side
209,557,423.95x = 35,130,877,828,805,452 - Step 5: Solve for x
x = 35,130,877,828,805,452/209,557,423.95 - Step 6: Final answer
x = 167,643,203.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.