Finding the Fourth Proportional to 20,810,195.04, 28,716,123.51 and 12,435,902.99
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Solution
The fourth proportional to 20,810,195.04, 28,716,123.51 and 12,435,902.99 is: 17,160,383.43
Step by Step Solution
- Step 1: Write the proportion equation
20,810,195.04 : 28,716,123.51 = 12,435,902.99 : x - Step 2: Convert to fraction form
20,810,195.04/28,716,123.51 = 12,435,902.99/x - Step 3: Cross multiply
20,810,195.04x = 28,716,123.51 × 12,435,902.99 - Step 4: Simplify right side
20,810,195.04x = 357,110,926,219,218.31 - Step 5: Solve for x
x = 357,110,926,219,218.31/20,810,195.04 - Step 6: Final answer
x = 17,160,383.43
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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.