Finding the Fourth Proportional to 7,670,624.80, 11,497,966.80 and 3,119,720.80
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Solution
The fourth proportional to 7,670,624.80, 11,497,966.80 and 3,119,720.80 is: 4,676,339.56
Step by Step Solution
- Step 1: Write the proportion equation
7,670,624.80 : 11,497,966.80 = 3,119,720.80 : x - Step 2: Convert to fraction form
7,670,624.80/11,497,966.80 = 3,119,720.80/x - Step 3: Cross multiply
7,670,624.80x = 11,497,966.80 × 3,119,720.80 - Step 4: Simplify right side
7,670,624.80x = 35,870,446,183,669.44 - Step 5: Solve for x
x = 35,870,446,183,669.44/7,670,624.80 - Step 6: Final answer
x = 4,676,339.56
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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.