Finding the Fourth Proportional to 14,340,588.12, 19,790,014.50 and 7,814,218.68
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Solution
The fourth proportional to 14,340,588.12, 19,790,014.50 and 7,814,218.68 is: 10,783,623.36
Step by Step Solution
- Step 1: Write the proportion equation
14,340,588.12 : 19,790,014.50 = 7,814,218.68 : x - Step 2: Convert to fraction form
14,340,588.12/19,790,014.50 = 7,814,218.68/x - Step 3: Cross multiply
14,340,588.12x = 19,790,014.50 × 7,814,218.68 - Step 4: Simplify right side
14,340,588.12x = 154,643,500,983,370.84 - Step 5: Solve for x
x = 154,643,500,983,370.84/14,340,588.12 - Step 6: Final answer
x = 10,783,623.36
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1.5x scale
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.