Finding the Fourth Proportional to 10,231,718.40, 15,353,107.20 and 4,552,819.20
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Solution
The fourth proportional to 10,231,718.40, 15,353,107.20 and 4,552,819.20 is: 6,831,689.31
Step by Step Solution
- Step 1: Write the proportion equation
10,231,718.40 : 15,353,107.20 = 4,552,819.20 : x - Step 2: Convert to fraction form
10,231,718.40/15,353,107.20 = 4,552,819.20/x - Step 3: Cross multiply
10,231,718.40x = 15,353,107.20 × 4,552,819.20 - Step 4: Simplify right side
10,231,718.40x = 69,899,921,239,818.24 - Step 5: Solve for x
x = 69,899,921,239,818.24/10,231,718.40 - Step 6: Final answer
x = 6,831,689.31
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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.