Finding the Fourth Proportional to 21,550,204.40, 29,739,911.98 and 11,761,276.84
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Solution
The fourth proportional to 21,550,204.40, 29,739,911.98 and 11,761,276.84 is: 16,230,905.82
Step by Step Solution
- Step 1: Write the proportion equation
21,550,204.40 : 29,739,911.98 = 11,761,276.84 : x - Step 2: Convert to fraction form
21,550,204.40/29,739,911.98 = 11,761,276.84/x - Step 3: Cross multiply
21,550,204.40x = 29,739,911.98 × 11,761,276.84 - Step 4: Simplify right side
21,550,204.40x = 349,779,337,994,012.56 - Step 5: Solve for x
x = 349,779,337,994,012.56/21,550,204.40 - Step 6: Final answer
x = 16,230,905.82
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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.