Finding the Fourth Proportional to 28,103,194.63, 38,770,532.85 and 18,813,757.42
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Solution
The fourth proportional to 28,103,194.63, 38,770,532.85 and 18,813,757.42 is: 25,955,034.99
Step by Step Solution
- Step 1: Write the proportion equation
28,103,194.63 : 38,770,532.85 = 18,813,757.42 : x - Step 2: Convert to fraction form
28,103,194.63/38,770,532.85 = 18,813,757.42/x - Step 3: Cross multiply
28,103,194.63x = 38,770,532.85 × 18,813,757.42 - Step 4: Simplify right side
28,103,194.63x = 729,419,400,084,041.38 - Step 5: Solve for x
x = 729,419,400,084,041.38/28,103,194.63 - Step 6: Final answer
x = 25,955,034.99
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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.