Finding the Fourth Proportional to 12,386,787.84, 18,550,863.36 and 6,306,577.92
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Solution
The fourth proportional to 12,386,787.84, 18,550,863.36 and 6,306,577.92 is: 9,444,939.78
Step by Step Solution
- Step 1: Write the proportion equation
12,386,787.84 : 18,550,863.36 = 6,306,577.92 : x - Step 2: Convert to fraction form
12,386,787.84/18,550,863.36 = 6,306,577.92/x - Step 3: Cross multiply
12,386,787.84x = 18,550,863.36 × 6,306,577.92 - Step 4: Simplify right side
12,386,787.84x = 116,992,465,263,113 - Step 5: Solve for x
x = 116,992,465,263,113/12,386,787.84 - Step 6: Final answer
x = 9,444,939.78
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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.