Finding the Fourth Proportional to 3,564,963.72, 4,919,616.45 and 1,933,407.09
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Solution
The fourth proportional to 3,564,963.72, 4,919,616.45 and 1,933,407.09 is: 2,668,083.62
Step by Step Solution
- Step 1: Write the proportion equation
3,564,963.72 : 4,919,616.45 = 1,933,407.09 : x - Step 2: Convert to fraction form
3,564,963.72/4,919,616.45 = 1,933,407.09/x - Step 3: Cross multiply
3,564,963.72x = 4,919,616.45 × 1,933,407.09 - Step 4: Simplify right side
3,564,963.72x = 9,511,621,324,510.63 - Step 5: Solve for x
x = 9,511,621,324,510.63/3,564,963.72 - Step 6: Final answer
x = 2,668,083.62
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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.