Finding the Fourth Proportional to 18,332,136.30, 27,498,204.45 and 6,971,108.70
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Solution
The fourth proportional to 18,332,136.30, 27,498,204.45 and 6,971,108.70 is: 10,456,663.05
Step by Step Solution
- Step 1: Write the proportion equation
18,332,136.30 : 27,498,204.45 = 6,971,108.70 : x - Step 2: Convert to fraction form
18,332,136.30/27,498,204.45 = 6,971,108.70/x - Step 3: Cross multiply
18,332,136.30x = 27,498,204.45 × 6,971,108.70 - Step 4: Simplify right side
18,332,136.30x = 191,692,972,275,773.72 - Step 5: Solve for x
x = 191,692,972,275,773.72/18,332,136.30 - Step 6: Final answer
x = 10,456,663.05
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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.