Finding the Fourth Proportional to 3,645,178.99, 5,026,579.17 and 3,130,636.60
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Solution
The fourth proportional to 3,645,178.99, 5,026,579.17 and 3,130,636.60 is: 4,317,042.53
Step by Step Solution
- Step 1: Write the proportion equation
3,645,178.99 : 5,026,579.17 = 3,130,636.60 : x - Step 2: Convert to fraction form
3,645,178.99/5,026,579.17 = 3,130,636.60/x - Step 3: Cross multiply
3,645,178.99x = 5,026,579.17 × 3,130,636.60 - Step 4: Simplify right side
3,645,178.99x = 15,736,392,722,399.62 - Step 5: Solve for x
x = 15,736,392,722,399.62/3,645,178.99 - Step 6: Final answer
x = 4,317,042.53
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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.