Finding the Fourth Proportional to 10,828,828.80, 16,243,243.20 and 9,611,107.20
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Solution
The fourth proportional to 10,828,828.80, 16,243,243.20 and 9,611,107.20 is: 14,416,660.80
Step by Step Solution
- Step 1: Write the proportion equation
10,828,828.80 : 16,243,243.20 = 9,611,107.20 : x - Step 2: Convert to fraction form
10,828,828.80/16,243,243.20 = 9,611,107.20/x - Step 3: Cross multiply
10,828,828.80x = 16,243,243.20 × 9,611,107.20 - Step 4: Simplify right side
10,828,828.80x = 156,115,551,670,871.03 - Step 5: Solve for x
x = 156,115,551,670,871.03/10,828,828.80 - Step 6: Final answer
x = 14,416,660.80
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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.