Finding the Fourth Proportional to 15,764,890.24, 21,753,699.84 and 8,888,962.56
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Solution
The fourth proportional to 15,764,890.24, 21,753,699.84 and 8,888,962.56 is: 12,265,725.96
Step by Step Solution
- Step 1: Write the proportion equation
15,764,890.24 : 21,753,699.84 = 8,888,962.56 : x - Step 2: Convert to fraction form
15,764,890.24/21,753,699.84 = 8,888,962.56/x - Step 3: Cross multiply
15,764,890.24x = 21,753,699.84 × 8,888,962.56 - Step 4: Simplify right side
15,764,890.24x = 193,367,823,419,238 - Step 5: Solve for x
x = 193,367,823,419,238/15,764,890.24 - Step 6: Final answer
x = 12,265,725.96
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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.