Finding the Fourth Proportional to 20,163,406.36, 27,827,165.46 and 11,464,317.40
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Solution
The fourth proportional to 20,163,406.36, 27,827,165.46 and 11,464,317.40 is: 15,821,704.50
Step by Step Solution
- Step 1: Write the proportion equation
20,163,406.36 : 27,827,165.46 = 11,464,317.40 : x - Step 2: Convert to fraction form
20,163,406.36/27,827,165.46 = 11,464,317.40/x - Step 3: Cross multiply
20,163,406.36x = 27,827,165.46 × 11,464,317.40 - Step 4: Simplify right side
20,163,406.36x = 319,019,457,175,757 - Step 5: Solve for x
x = 319,019,457,175,757/20,163,406.36 - Step 6: Final answer
x = 15,821,704.50
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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.