Finding the Fourth Proportional to 18,464,794.20, 27,697,191.30 and 18,212,851.80
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Solution
The fourth proportional to 18,464,794.20, 27,697,191.30 and 18,212,851.80 is: 27,319,277.70
Step by Step Solution
- Step 1: Write the proportion equation
18,464,794.20 : 27,697,191.30 = 18,212,851.80 : x - Step 2: Convert to fraction form
18,464,794.20/27,697,191.30 = 18,212,851.80/x - Step 3: Cross multiply
18,464,794.20x = 27,697,191.30 × 18,212,851.80 - Step 4: Simplify right side
18,464,794.20x = 504,444,840,423,149.38 - Step 5: Solve for x
x = 504,444,840,423,149.38/18,464,794.20 - Step 6: Final answer
x = 27,319,277.70
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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.