Finding the Fourth Proportional to 27,642,107.40, 38,145,847.86 and 15,252,312.84
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Solution
The fourth proportional to 27,642,107.40, 38,145,847.86 and 15,252,312.84 is: 21,048,048.06
Step by Step Solution
- Step 1: Write the proportion equation
27,642,107.40 : 38,145,847.86 = 15,252,312.84 : x - Step 2: Convert to fraction form
27,642,107.40/38,145,847.86 = 15,252,312.84/x - Step 3: Cross multiply
27,642,107.40x = 38,145,847.86 × 15,252,312.84 - Step 4: Simplify right side
27,642,107.40x = 581,812,405,107,764.50 - Step 5: Solve for x
x = 581,812,405,107,764.50/27,642,107.40 - Step 6: Final answer
x = 21,048,048.06
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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.