Finding the Fourth Proportional to 19,419,984.30, 29,129,976.45 and 6,639,350.70
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Solution
The fourth proportional to 19,419,984.30, 29,129,976.45 and 6,639,350.70 is: 9,959,026.05
Step by Step Solution
- Step 1: Write the proportion equation
19,419,984.30 : 29,129,976.45 = 6,639,350.70 : x - Step 2: Convert to fraction form
19,419,984.30/29,129,976.45 = 6,639,350.70/x - Step 3: Cross multiply
19,419,984.30x = 29,129,976.45 × 6,639,350.70 - Step 4: Simplify right side
19,419,984.30x = 193,404,129,534,291 - Step 5: Solve for x
x = 193,404,129,534,291/19,419,984.30 - Step 6: Final answer
x = 9,959,026.05
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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.