Finding the Fourth Proportional to 38,993,305.53, 53,812,442.70 and 21,589,650.62
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Solution
The fourth proportional to 38,993,305.53, 53,812,442.70 and 21,589,650.62 is: 29,794,648.62
Step by Step Solution
- Step 1: Write the proportion equation
38,993,305.53 : 53,812,442.70 = 21,589,650.62 : x - Step 2: Convert to fraction form
38,993,305.53/53,812,442.70 = 21,589,650.62/x - Step 3: Cross multiply
38,993,305.53x = 53,812,442.70 × 21,589,650.62 - Step 4: Simplify right side
38,993,305.53x = 1,161,791,836,901,769.50 - Step 5: Solve for x
x = 1,161,791,836,901,769.50/38,993,305.53 - Step 6: Final answer
x = 29,794,648.62
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1.5x scale
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.