Finding the Fourth Proportional to 11,286,127.31, 15,575,816.43 and 6,392,220.10
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Solution
The fourth proportional to 11,286,127.31, 15,575,816.43 and 6,392,220.10 is: 8,821,807.88
Step by Step Solution
- Step 1: Write the proportion equation
11,286,127.31 : 15,575,816.43 = 6,392,220.10 : x - Step 2: Convert to fraction form
11,286,127.31/15,575,816.43 = 6,392,220.10/x - Step 3: Cross multiply
11,286,127.31x = 15,575,816.43 × 6,392,220.10 - Step 4: Simplify right side
11,286,127.31x = 99,564,046,818,816.70 - Step 5: Solve for x
x = 99,564,046,818,816.70/11,286,127.31 - Step 6: Final answer
x = 8,821,807.88
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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.