Finding the Fourth Proportional to 11,229,343.20, 16,820,395.20 and 9,339,775.20
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Solution
The fourth proportional to 11,229,343.20, 16,820,395.20 and 9,339,775.20 is: 13,990,017.68
Step by Step Solution
- Step 1: Write the proportion equation
11,229,343.20 : 16,820,395.20 = 9,339,775.20 : x - Step 2: Convert to fraction form
11,229,343.20/16,820,395.20 = 9,339,775.20/x - Step 3: Cross multiply
11,229,343.20x = 16,820,395.20 × 9,339,775.20 - Step 4: Simplify right side
11,229,343.20x = 157,098,709,943,159.03 - Step 5: Solve for x
x = 157,098,709,943,159.03/11,229,343.20 - Step 6: Final answer
x = 13,990,017.68
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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.