Finding the Fourth Proportional to 4,572,878.31, 6,310,117.22 and 2,639,761.68
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Solution
The fourth proportional to 4,572,878.31, 6,310,117.22 and 2,639,761.68 is: 3,642,608.55
Step by Step Solution
- Step 1: Write the proportion equation
4,572,878.31 : 6,310,117.22 = 2,639,761.68 : x - Step 2: Convert to fraction form
4,572,878.31/6,310,117.22 = 2,639,761.68/x - Step 3: Cross multiply
4,572,878.31x = 6,310,117.22 × 2,639,761.68 - Step 4: Simplify right side
4,572,878.31x = 16,657,205,620,465.32 - Step 5: Solve for x
x = 16,657,205,620,465.32/4,572,878.31 - Step 6: Final answer
x = 3,642,608.55
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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.