Finding the Fourth Proportional to 6,345,453.84, 8,758,990.20 and 3,767,128.44
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Solution
The fourth proportional to 6,345,453.84, 8,758,990.20 and 3,767,128.44 is: 5,199,981.27
Step by Step Solution
- Step 1: Write the proportion equation
6,345,453.84 : 8,758,990.20 = 3,767,128.44 : x - Step 2: Convert to fraction form
6,345,453.84/8,758,990.20 = 3,767,128.44/x - Step 3: Cross multiply
6,345,453.84x = 8,758,990.20 × 3,767,128.44 - Step 4: Simplify right side
6,345,453.84x = 32,996,241,088,101.29 - Step 5: Solve for x
x = 32,996,241,088,101.29/6,345,453.84 - Step 6: Final answer
x = 5,199,981.27
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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.