Finding the Fourth Proportional to 81,630,353.10, 112,645,634.67 and 50,689,858.62
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Solution
The fourth proportional to 81,630,353.10, 112,645,634.67 and 50,689,858.62 is: 69,949,364.16
Step by Step Solution
- Step 1: Write the proportion equation
81,630,353.10 : 112,645,634.67 = 50,689,858.62 : x - Step 2: Convert to fraction form
81,630,353.10/112,645,634.67 = 50,689,858.62/x - Step 3: Cross multiply
81,630,353.10x = 112,645,634.67 × 50,689,858.62 - Step 4: Simplify right side
81,630,353.10x = 5,709,991,295,582,470 - Step 5: Solve for x
x = 5,709,991,295,582,470/81,630,353.10 - Step 6: Final answer
x = 69,949,364.16
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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.