Finding the Fourth Proportional to 11,435,957.15, 15,781,620.94 and 6,279,318.72
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Solution
The fourth proportional to 11,435,957.15, 15,781,620.94 and 6,279,318.72 is: 8,665,459.88
Step by Step Solution
- Step 1: Write the proportion equation
11,435,957.15 : 15,781,620.94 = 6,279,318.72 : x - Step 2: Convert to fraction form
11,435,957.15/15,781,620.94 = 6,279,318.72/x - Step 3: Cross multiply
11,435,957.15x = 15,781,620.94 × 6,279,318.72 - Step 4: Simplify right side
11,435,957.15x = 99,097,827,784,787.70 - Step 5: Solve for x
x = 99,097,827,784,787.70/11,435,957.15 - Step 6: Final answer
x = 8,665,459.88
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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.