Finding the Fourth Proportional to 6,386,578.30, 9,579,867.45 and 4,119,096.70
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Solution
The fourth proportional to 6,386,578.30, 9,579,867.45 and 4,119,096.70 is: 6,178,645.05
Step by Step Solution
- Step 1: Write the proportion equation
6,386,578.30 : 9,579,867.45 = 4,119,096.70 : x - Step 2: Convert to fraction form
6,386,578.30/9,579,867.45 = 4,119,096.70/x - Step 3: Cross multiply
6,386,578.30x = 9,579,867.45 × 4,119,096.70 - Step 4: Simplify right side
6,386,578.30x = 39,460,400,399,732.41 - Step 5: Solve for x
x = 39,460,400,399,732.41/6,386,578.30 - Step 6: Final answer
x = 6,178,645.05
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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.