Finding the Fourth Proportional to 7,815,720.24, 10,786,037.67 and 4,331,049.18
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Solution
The fourth proportional to 7,815,720.24, 10,786,037.67 and 4,331,049.18 is: 5,977,038.35
Step by Step Solution
- Step 1: Write the proportion equation
7,815,720.24 : 10,786,037.67 = 4,331,049.18 : x - Step 2: Convert to fraction form
7,815,720.24/10,786,037.67 = 4,331,049.18/x - Step 3: Cross multiply
7,815,720.24x = 10,786,037.67 × 4,331,049.18 - Step 4: Simplify right side
7,815,720.24x = 46,714,859,606,102.61 - Step 5: Solve for x
x = 46,714,859,606,102.61/7,815,720.24 - Step 6: Final answer
x = 5,977,038.35
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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.