Finding the Fourth Proportional to 49,260,638.97, 67,990,473.36 and 28,645,976.97
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Solution
The fourth proportional to 49,260,638.97, 67,990,473.36 and 28,645,976.97 is: 39,537,723.72
Step by Step Solution
- Step 1: Write the proportion equation
49,260,638.97 : 67,990,473.36 = 28,645,976.97 : x - Step 2: Convert to fraction form
49,260,638.97/67,990,473.36 = 28,645,976.97/x - Step 3: Cross multiply
49,260,638.97x = 67,990,473.36 × 28,645,976.97 - Step 4: Simplify right side
49,260,638.97x = 1,947,653,534,049,958.50 - Step 5: Solve for x
x = 1,947,653,534,049,958.50/49,260,638.97 - Step 6: Final answer
x = 39,537,723.72
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1.5x scale
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.