Finding the Fourth Proportional to 21,438,901.35, 32,151,441.10 and 7,058,545.29
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Solution
The fourth proportional to 21,438,901.35, 32,151,441.10 and 7,058,545.29 is: 10,585,542.58
Step by Step Solution
- Step 1: Write the proportion equation
21,438,901.35 : 32,151,441.10 = 7,058,545.29 : x - Step 2: Convert to fraction form
21,438,901.35/32,151,441.10 = 7,058,545.29/x - Step 3: Cross multiply
21,438,901.35x = 32,151,441.10 × 7,058,545.29 - Step 4: Simplify right side
21,438,901.35x = 226,942,403,143,117.44 - Step 5: Solve for x
x = 226,942,403,143,117.44/21,438,901.35 - Step 6: Final answer
x = 10,585,542.58
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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.