Finding the Fourth Proportional to 21,160,296.63, 29,201,529.31 and 11,869,926.10
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Solution
The fourth proportional to 21,160,296.63, 29,201,529.31 and 11,869,926.10 is: 16,380,677.50
Step by Step Solution
- Step 1: Write the proportion equation
21,160,296.63 : 29,201,529.31 = 11,869,926.10 : x - Step 2: Convert to fraction form
21,160,296.63/29,201,529.31 = 11,869,926.10/x - Step 3: Cross multiply
21,160,296.63x = 29,201,529.31 × 11,869,926.10 - Step 4: Simplify right side
21,160,296.63x = 346,619,994,814,005.38 - Step 5: Solve for x
x = 346,619,994,814,005.38/21,160,296.63 - Step 6: Final answer
x = 16,380,677.50
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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.