Finding the Fourth Proportional to 2,998,443.09, 4,137,949.26 and 1,640,316.09
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Solution
The fourth proportional to 2,998,443.09, 4,137,949.26 and 1,640,316.09 is: 2,263,689.70
Step by Step Solution
- Step 1: Write the proportion equation
2,998,443.09 : 4,137,949.26 = 1,640,316.09 : x - Step 2: Convert to fraction form
2,998,443.09/4,137,949.26 = 1,640,316.09/x - Step 3: Cross multiply
2,998,443.09x = 4,137,949.26 × 1,640,316.09 - Step 4: Simplify right side
2,998,443.09x = 6,787,544,750,781.59 - Step 5: Solve for x
x = 6,787,544,750,781.59/2,998,443.09 - Step 6: Final answer
x = 2,263,689.70
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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.