Finding the Fourth Proportional to 12,145,835.63, 16,761,253.95 and 6,639,232.29
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Solution
The fourth proportional to 12,145,835.63, 16,761,253.95 and 6,639,232.29 is: 9,162,140.99
Step by Step Solution
- Step 1: Write the proportion equation
12,145,835.63 : 16,761,253.95 = 6,639,232.29 : x - Step 2: Convert to fraction form
12,145,835.63/16,761,253.95 = 6,639,232.29/x - Step 3: Cross multiply
12,145,835.63x = 16,761,253.95 × 6,639,232.29 - Step 4: Simplify right side
12,145,835.63x = 111,281,858,445,730.05 - Step 5: Solve for x
x = 111,281,858,445,730.05/12,145,835.63 - Step 6: Final answer
x = 9,162,140.99
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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.