Finding the Fourth Proportional to 209,957,305.80, 314,935,958.70 and 197,202,721.80
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Solution
The fourth proportional to 209,957,305.80, 314,935,958.70 and 197,202,721.80 is: 295,804,082.70
Step by Step Solution
- Step 1: Write the proportion equation
209,957,305.80 : 314,935,958.70 = 197,202,721.80 : x - Step 2: Convert to fraction form
209,957,305.80/314,935,958.70 = 197,202,721.80/x - Step 3: Cross multiply
209,957,305.80x = 314,935,958.70 × 197,202,721.80 - Step 4: Simplify right side
209,957,305.80x = 62,106,228,248,332,392 - Step 5: Solve for x
x = 62,106,228,248,332,392/209,957,305.80 - Step 6: Final answer
x = 295,804,082.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.