Finding the Fourth Proportional to 49,912,791.12, 68,867,842.52 and 28,992,395.02
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Solution
The fourth proportional to 49,912,791.12, 68,867,842.52 and 28,992,395.02 is: 40,002,645.61
Step by Step Solution
- Step 1: Write the proportion equation
49,912,791.12 : 68,867,842.52 = 28,992,395.02 : x - Step 2: Convert to fraction form
49,912,791.12/68,867,842.52 = 28,992,395.02/x - Step 3: Cross multiply
49,912,791.12x = 68,867,842.52 × 28,992,395.02 - Step 4: Simplify right side
49,912,791.12x = 1,996,643,694,514,992 - Step 5: Solve for x
x = 1,996,643,694,514,992/49,912,791.12 - Step 6: Final answer
x = 40,002,645.61
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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.