Finding the Fourth Proportional to 3,644,513.84, 5,028,579.96 and 2,115,713.36
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Solution
The fourth proportional to 3,644,513.84, 5,028,579.96 and 2,115,713.36 is: 2,919,191.49
Step by Step Solution
- Step 1: Write the proportion equation
3,644,513.84 : 5,028,579.96 = 2,115,713.36 : x - Step 2: Convert to fraction form
3,644,513.84/5,028,579.96 = 2,115,713.36/x - Step 3: Cross multiply
3,644,513.84x = 5,028,579.96 × 2,115,713.36 - Step 4: Simplify right side
3,644,513.84x = 10,639,033,803,200.27 - Step 5: Solve for x
x = 10,639,033,803,200.27/3,644,513.84 - Step 6: Final answer
x = 2,919,191.49
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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.