Finding the Fourth Proportional to 9,551,612.18, 13,189,416.64 and 9,242,761.62
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Solution
The fourth proportional to 9,551,612.18, 13,189,416.64 and 9,242,761.62 is: 12,762,937.99
Step by Step Solution
- Step 1: Write the proportion equation
9,551,612.18 : 13,189,416.64 = 9,242,761.62 : x - Step 2: Convert to fraction form
9,551,612.18/13,189,416.64 = 9,242,761.62/x - Step 3: Cross multiply
9,551,612.18x = 13,189,416.64 × 9,242,761.62 - Step 4: Simplify right side
9,551,612.18x = 121,906,633,910,381.34 - Step 5: Solve for x
x = 121,906,633,910,381.34/9,551,612.18 - Step 6: Final answer
x = 12,762,937.99
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Double scale
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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.