Finding the Fourth Proportional to 3,565,448.92, 4,920,386.70 and 2,188,103.68
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Solution
The fourth proportional to 3,565,448.92, 4,920,386.70 and 2,188,103.68 is: 3,019,624.31
Step by Step Solution
- Step 1: Write the proportion equation
3,565,448.92 : 4,920,386.70 = 2,188,103.68 : x - Step 2: Convert to fraction form
3,565,448.92/4,920,386.70 = 2,188,103.68/x - Step 3: Cross multiply
3,565,448.92x = 4,920,386.70 × 2,188,103.68 - Step 4: Simplify right side
3,565,448.92x = 10,766,316,245,293.06 - Step 5: Solve for x
x = 10,766,316,245,293.06/3,565,448.92 - Step 6: Final answer
x = 3,019,624.31
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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.