Finding the Fourth Proportional to 7,040,695.50, 9,714,493.80 and 3,984,909.84
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Solution
The fourth proportional to 7,040,695.50, 9,714,493.80 and 3,984,909.84 is: 5,498,232.66
Step by Step Solution
- Step 1: Write the proportion equation
7,040,695.50 : 9,714,493.80 = 3,984,909.84 : x - Step 2: Convert to fraction form
7,040,695.50/9,714,493.80 = 3,984,909.84/x - Step 3: Cross multiply
7,040,695.50x = 9,714,493.80 × 3,984,909.84 - Step 4: Simplify right side
7,040,695.50x = 38,711,381,934,238.99 - Step 5: Solve for x
x = 38,711,381,934,238.99/7,040,695.50 - Step 6: Final answer
x = 5,498,232.66
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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.