Finding the Fourth Proportional to 7,115,370.24, 9,819,142.20 and 3,852,101.28
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Solution
The fourth proportional to 7,115,370.24, 9,819,142.20 and 3,852,101.28 is: 5,315,862.56
Step by Step Solution
- Step 1: Write the proportion equation
7,115,370.24 : 9,819,142.20 = 3,852,101.28 : x - Step 2: Convert to fraction form
7,115,370.24/9,819,142.20 = 3,852,101.28/x - Step 3: Cross multiply
7,115,370.24x = 9,819,142.20 × 3,852,101.28 - Step 4: Simplify right side
7,115,370.24x = 37,824,330,237,122.01 - Step 5: Solve for x
x = 37,824,330,237,122.01/7,115,370.24 - Step 6: Final answer
x = 5,315,862.56
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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.