Finding the Fourth Proportional to 13,396,812.87, 20,076,602.43 and 6,994,293.84
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Solution
The fourth proportional to 13,396,812.87, 20,076,602.43 and 6,994,293.84 is: 10,481,721.14
Step by Step Solution
- Step 1: Write the proportion equation
13,396,812.87 : 20,076,602.43 = 6,994,293.84 : x - Step 2: Convert to fraction form
13,396,812.87/20,076,602.43 = 6,994,293.84/x - Step 3: Cross multiply
13,396,812.87x = 20,076,602.43 × 6,994,293.84 - Step 4: Simplify right side
13,396,812.87x = 140,421,656,704,278.03 - Step 5: Solve for x
x = 140,421,656,704,278.03/13,396,812.87 - Step 6: Final answer
x = 10,481,721.14
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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.