Finding the Fourth Proportional to 13,563,989.76, 18,713,022.66 and 7,682,271.96
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Solution
The fourth proportional to 13,563,989.76, 18,713,022.66 and 7,682,271.96 is: 10,598,543.04
Step by Step Solution
- Step 1: Write the proportion equation
13,563,989.76 : 18,713,022.66 = 7,682,271.96 : x - Step 2: Convert to fraction form
13,563,989.76/18,713,022.66 = 7,682,271.96/x - Step 3: Cross multiply
13,563,989.76x = 18,713,022.66 × 7,682,271.96 - Step 4: Simplify right side
13,563,989.76x = 143,758,529,267,762.62 - Step 5: Solve for x
x = 143,758,529,267,762.62/13,563,989.76 - Step 6: Final answer
x = 10,598,543.04
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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.