Finding the Fourth Proportional to 21,550,217.87, 29,739,930.64 and 11,761,290.59
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Solution
The fourth proportional to 21,550,217.87, 29,739,930.64 and 11,761,290.59 is: 16,230,924.82
Step by Step Solution
- Step 1: Write the proportion equation
21,550,217.87 : 29,739,930.64 = 11,761,290.59 : x - Step 2: Convert to fraction form
21,550,217.87/29,739,930.64 = 11,761,290.59/x - Step 3: Cross multiply
21,550,217.87x = 29,739,930.64 × 11,761,290.59 - Step 4: Simplify right side
21,550,217.87x = 349,779,966,205,381.81 - Step 5: Solve for x
x = 349,779,966,205,381.81/21,550,217.87 - Step 6: Final answer
x = 16,230,924.82
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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.