Finding the Fourth Proportional to 8,898,321.70, 12,279,780.69 and 5,227,392.99
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Solution
The fourth proportional to 8,898,321.70, 12,279,780.69 and 5,227,392.99 is: 7,213,859.16
Step by Step Solution
- Step 1: Write the proportion equation
8,898,321.70 : 12,279,780.69 = 5,227,392.99 : x - Step 2: Convert to fraction form
8,898,321.70/12,279,780.69 = 5,227,392.99/x - Step 3: Cross multiply
8,898,321.70x = 12,279,780.69 × 5,227,392.99 - Step 4: Simplify right side
8,898,321.70x = 64,191,239,497,643.36 - Step 5: Solve for x
x = 64,191,239,497,643.36/8,898,321.70 - Step 6: Final answer
x = 7,213,859.16
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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.