Finding the Fourth Proportional to 11,210,034.87, 15,470,990.79 and 6,861,994.56
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Solution
The fourth proportional to 11,210,034.87, 15,470,990.79 and 6,861,994.56 is: 9,470,251.95
Step by Step Solution
- Step 1: Write the proportion equation
11,210,034.87 : 15,470,990.79 = 6,861,994.56 : x - Step 2: Convert to fraction form
11,210,034.87/15,470,990.79 = 6,861,994.56/x - Step 3: Cross multiply
11,210,034.87x = 15,470,990.79 × 6,861,994.56 - Step 4: Simplify right side
11,210,034.87x = 106,161,854,638,790.09 - Step 5: Solve for x
x = 106,161,854,638,790.09/11,210,034.87 - Step 6: Final answer
x = 9,470,251.95
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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.