Finding the Fourth Proportional to 14,743,995.21, 20,346,808.10 and 8,218,039.19
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Solution
The fourth proportional to 14,743,995.21, 20,346,808.10 and 8,218,039.19 is: 11,340,946.86
Step by Step Solution
- Step 1: Write the proportion equation
14,743,995.21 : 20,346,808.10 = 8,218,039.19 : x - Step 2: Convert to fraction form
14,743,995.21/20,346,808.10 = 8,218,039.19/x - Step 3: Cross multiply
14,743,995.21x = 20,346,808.10 × 8,218,039.19 - Step 4: Simplify right side
14,743,995.21x = 167,210,866,214,385.19 - Step 5: Solve for x
x = 167,210,866,214,385.19/14,743,995.21 - Step 6: Final answer
x = 11,340,946.86
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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.