Finding the Fourth Proportional to 6,239,246.70, 9,358,870.05 and 4,412,664.30
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Solution
The fourth proportional to 6,239,246.70, 9,358,870.05 and 4,412,664.30 is: 6,618,996.45
Step by Step Solution
- Step 1: Write the proportion equation
6,239,246.70 : 9,358,870.05 = 4,412,664.30 : x - Step 2: Convert to fraction form
6,239,246.70/9,358,870.05 = 4,412,664.30/x - Step 3: Cross multiply
6,239,246.70x = 9,358,870.05 × 4,412,664.30 - Step 4: Simplify right side
6,239,246.70x = 41,297,551,757,974.22 - Step 5: Solve for x
x = 41,297,551,757,974.22/6,239,246.70 - Step 6: Final answer
x = 6,618,996.45
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Double scale
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Similar ratio
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1.5x scale
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.