Finding the Fourth Proportional to 12,481,902.70, 18,694,860.45 and 10,242,414.70
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Solution
The fourth proportional to 12,481,902.70, 18,694,860.45 and 10,242,414.70 is: 15,340,651.03
Step by Step Solution
- Step 1: Write the proportion equation
12,481,902.70 : 18,694,860.45 = 10,242,414.70 : x - Step 2: Convert to fraction form
12,481,902.70/18,694,860.45 = 10,242,414.70/x - Step 3: Cross multiply
12,481,902.70x = 18,694,860.45 × 10,242,414.70 - Step 4: Simplify right side
12,481,902.70x = 191,480,513,487,528.59 - Step 5: Solve for x
x = 191,480,513,487,528.59/12,481,902.70 - Step 6: Final answer
x = 15,340,651.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.