Finding the Fourth Proportional to 199,040,186.40, 298,437,107.58 and 77,728,987.68
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Solution
The fourth proportional to 199,040,186.40, 298,437,107.58 and 77,728,987.68 is: 116,545,380.50
Step by Step Solution
- Step 1: Write the proportion equation
199,040,186.40 : 298,437,107.58 = 77,728,987.68 : x - Step 2: Convert to fraction form
199,040,186.40/298,437,107.58 = 77,728,987.68/x - Step 3: Cross multiply
199,040,186.40x = 298,437,107.58 × 77,728,987.68 - Step 4: Simplify right side
199,040,186.40x = 23,197,214,258,340,656 - Step 5: Solve for x
x = 23,197,214,258,340,656/199,040,186.40 - Step 6: Final answer
x = 116,545,380.50
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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.