Finding the Fourth Proportional to 49,384,539.65, 68,138,352.94 and 28,482,965.12
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Solution
The fourth proportional to 49,384,539.65, 68,138,352.94 and 28,482,965.12 is: 39,299,390.94
Step by Step Solution
- Step 1: Write the proportion equation
49,384,539.65 : 68,138,352.94 = 28,482,965.12 : x - Step 2: Convert to fraction form
49,384,539.65/68,138,352.94 = 28,482,965.12/x - Step 3: Cross multiply
49,384,539.65x = 68,138,352.94 × 28,482,965.12 - Step 4: Simplify right side
49,384,539.65x = 1,940,782,330,124,269.50 - Step 5: Solve for x
x = 1,940,782,330,124,269.50/49,384,539.65 - Step 6: Final answer
x = 39,299,390.94
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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.