Finding the Fourth Proportional to 11,074,987.70, 16,612,481.55 and 8,240,635.70
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Solution
The fourth proportional to 11,074,987.70, 16,612,481.55 and 8,240,635.70 is: 12,360,953.55
Step by Step Solution
- Step 1: Write the proportion equation
11,074,987.70 : 16,612,481.55 = 8,240,635.70 : x - Step 2: Convert to fraction form
11,074,987.70/16,612,481.55 = 8,240,635.70/x - Step 3: Cross multiply
11,074,987.70x = 16,612,481.55 × 8,240,635.70 - Step 4: Simplify right side
11,074,987.70x = 136,897,408,526,521.34 - Step 5: Solve for x
x = 136,897,408,526,521.34/11,074,987.70 - Step 6: Final answer
x = 12,360,953.55
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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.