Finding the Fourth Proportional to 4,127,763.80, 6,192,228.90 and 1,287,579.80
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Solution
The fourth proportional to 4,127,763.80, 6,192,228.90 and 1,287,579.80 is: 1,931,551.62
Step by Step Solution
- Step 1: Write the proportion equation
4,127,763.80 : 6,192,228.90 = 1,287,579.80 : x - Step 2: Convert to fraction form
4,127,763.80/6,192,228.90 = 1,287,579.80/x - Step 3: Cross multiply
4,127,763.80x = 6,192,228.90 × 1,287,579.80 - Step 4: Simplify right side
4,127,763.80x = 7,972,988,848,616.22 - Step 5: Solve for x
x = 7,972,988,848,616.22/4,127,763.80 - Step 6: Final answer
x = 1,931,551.62
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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.