Finding the Fourth Proportional to 4,428,863.80, 6,643,295.70 and 3,358,108.60
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Solution
The fourth proportional to 4,428,863.80, 6,643,295.70 and 3,358,108.60 is: 5,037,162.90
Step by Step Solution
- Step 1: Write the proportion equation
4,428,863.80 : 6,643,295.70 = 3,358,108.60 : x - Step 2: Convert to fraction form
4,428,863.80/6,643,295.70 = 3,358,108.60/x - Step 3: Cross multiply
4,428,863.80x = 6,643,295.70 × 3,358,108.60 - Step 4: Simplify right side
4,428,863.80x = 22,308,908,422,513.02 - Step 5: Solve for x
x = 22,308,908,422,513.02/4,428,863.80 - Step 6: Final answer
x = 5,037,162.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.