Finding the Fourth Proportional to 11,702,990.35, 16,143,064.86 and 7,729,285.87
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Solution
The fourth proportional to 11,702,990.35, 16,143,064.86 and 7,729,285.87 is: 10,661,750.49
Step by Step Solution
- Step 1: Write the proportion equation
11,702,990.35 : 16,143,064.86 = 7,729,285.87 : x - Step 2: Convert to fraction form
11,702,990.35/16,143,064.86 = 7,729,285.87/x - Step 3: Cross multiply
11,702,990.35x = 16,143,064.86 × 7,729,285.87 - Step 4: Simplify right side
11,702,990.35x = 124,774,363,120,891.53 - Step 5: Solve for x
x = 124,774,363,120,891.53/11,702,990.35 - Step 6: Final answer
x = 10,661,750.49
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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.