Finding the Fourth Proportional to 2,475,159.12, 3,415,877.33 and 1,387,431.18
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Solution
The fourth proportional to 2,475,159.12, 3,415,877.33 and 1,387,431.18 is: 1,914,743.45
Step by Step Solution
- Step 1: Write the proportion equation
2,475,159.12 : 3,415,877.33 = 1,387,431.18 : x - Step 2: Convert to fraction form
2,475,159.12/3,415,877.33 = 1,387,431.18/x - Step 3: Cross multiply
2,475,159.12x = 3,415,877.33 × 1,387,431.18 - Step 4: Simplify right side
2,475,159.12x = 4,739,294,707,759.99 - Step 5: Solve for x
x = 4,739,294,707,759.99/2,475,159.12 - Step 6: Final answer
x = 1,914,743.45
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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.