Finding the Fourth Proportional to 7,624,163.84, 10,521,419.92 and 4,186,478.68
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Solution
The fourth proportional to 7,624,163.84, 10,521,419.92 and 4,186,478.68 is: 5,777,381.11
Step by Step Solution
- Step 1: Write the proportion equation
7,624,163.84 : 10,521,419.92 = 4,186,478.68 : x - Step 2: Convert to fraction form
7,624,163.84/10,521,419.92 = 4,186,478.68/x - Step 3: Cross multiply
7,624,163.84x = 10,521,419.92 × 4,186,478.68 - Step 4: Simplify right side
7,624,163.84x = 44,047,700,178,407.30 - Step 5: Solve for x
x = 44,047,700,178,407.30/7,624,163.84 - Step 6: Final answer
x = 5,777,381.11
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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.