Finding the Fourth Proportional to 5,115,354.47, 7,058,686.71 and 2,823,367.53
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Solution
The fourth proportional to 5,115,354.47, 7,058,686.71 and 2,823,367.53 is: 3,895,969.86
Step by Step Solution
- Step 1: Write the proportion equation
5,115,354.47 : 7,058,686.71 = 2,823,367.53 : x - Step 2: Convert to fraction form
5,115,354.47/7,058,686.71 = 2,823,367.53/x - Step 3: Cross multiply
5,115,354.47x = 7,058,686.71 × 2,823,367.53 - Step 4: Simplify right side
5,115,354.47x = 19,929,266,861,456.52 - Step 5: Solve for x
x = 19,929,266,861,456.52/5,115,354.47 - Step 6: Final answer
x = 3,895,969.86
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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.