Finding the Fourth Proportional to 19,646,645.28, 29,474,686.92 and 7,515,910.32
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Solution
The fourth proportional to 19,646,645.28, 29,474,686.92 and 7,515,910.32 is: 11,275,670.75
Step by Step Solution
- Step 1: Write the proportion equation
19,646,645.28 : 29,474,686.92 = 7,515,910.32 : x - Step 2: Convert to fraction form
19,646,645.28/29,474,686.92 = 7,515,910.32/x - Step 3: Cross multiply
19,646,645.28x = 29,474,686.92 × 7,515,910.32 - Step 4: Simplify right side
19,646,645.28x = 221,529,103,600,797.03 - Step 5: Solve for x
x = 221,529,103,600,797.03/19,646,645.28 - Step 6: Final answer
x = 11,275,670.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.