Finding the Fourth Proportional to 75,351,472.88, 112,862,421.12 and 53,425,389.92
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Solution
The fourth proportional to 75,351,472.88, 112,862,421.12 and 53,425,389.92 is: 80,021,247.43
Step by Step Solution
- Step 1: Write the proportion equation
75,351,472.88 : 112,862,421.12 = 53,425,389.92 : x - Step 2: Convert to fraction form
75,351,472.88/112,862,421.12 = 53,425,389.92/x - Step 3: Cross multiply
75,351,472.88x = 112,862,421.12 × 53,425,389.92 - Step 4: Simplify right side
75,351,472.88x = 6,029,718,855,651,244 - Step 5: Solve for x
x = 6,029,718,855,651,244/75,351,472.88 - Step 6: Final answer
x = 80,021,247.43
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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.