Finding the Fourth Proportional to 9,739,892.70, 14,609,839.05 and 4,421,108.70
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Solution
The fourth proportional to 9,739,892.70, 14,609,839.05 and 4,421,108.70 is: 6,631,663.05
Step by Step Solution
- Step 1: Write the proportion equation
9,739,892.70 : 14,609,839.05 = 4,421,108.70 : x - Step 2: Convert to fraction form
9,739,892.70/14,609,839.05 = 4,421,108.70/x - Step 3: Cross multiply
9,739,892.70x = 14,609,839.05 × 4,421,108.70 - Step 4: Simplify right side
9,739,892.70x = 64,591,686,529,554.74 - Step 5: Solve for x
x = 64,591,686,529,554.74/9,739,892.70 - Step 6: Final answer
x = 6,631,663.05
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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.