Finding the Fourth Proportional to 4,821,129.20, 6,653,239.96 and 2,645,874.74
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Solution
The fourth proportional to 4,821,129.20, 6,653,239.96 and 2,645,874.74 is: 3,651,351.96
Step by Step Solution
- Step 1: Write the proportion equation
4,821,129.20 : 6,653,239.96 = 2,645,874.74 : x - Step 2: Convert to fraction form
4,821,129.20/6,653,239.96 = 2,645,874.74/x - Step 3: Cross multiply
4,821,129.20x = 6,653,239.96 × 2,645,874.74 - Step 4: Simplify right side
4,821,129.20x = 17,603,639,549,322.61 - Step 5: Solve for x
x = 17,603,639,549,322.61/4,821,129.20 - Step 6: Final answer
x = 3,651,351.96
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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.