Finding the Fourth Proportional to 2,475,161.62, 3,415,880.78 and 1,387,433.68
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Solution
The fourth proportional to 2,475,161.62, 3,415,880.78 and 1,387,433.68 is: 1,914,746.90
Step by Step Solution
- Step 1: Write the proportion equation
2,475,161.62 : 3,415,880.78 = 1,387,433.68 : x - Step 2: Convert to fraction form
2,475,161.62/3,415,880.78 = 1,387,433.68/x - Step 3: Cross multiply
2,475,161.62x = 3,415,880.78 × 1,387,433.68 - Step 4: Simplify right side
2,475,161.62x = 4,739,308,041,036.67 - Step 5: Solve for x
x = 4,739,308,041,036.67/2,475,161.62 - Step 6: Final answer
x = 1,914,746.90
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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.