Finding the Fourth Proportional to 4,812,804.40, 7,216,873.80 and 2,680,625.20
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Solution
The fourth proportional to 4,812,804.40, 7,216,873.80 and 2,680,625.20 is: 4,019,638.48
Step by Step Solution
- Step 1: Write the proportion equation
4,812,804.40 : 7,216,873.80 = 2,680,625.20 : x - Step 2: Convert to fraction form
4,812,804.40/7,216,873.80 = 2,680,625.20/x - Step 3: Cross multiply
4,812,804.40x = 7,216,873.80 × 2,680,625.20 - Step 4: Simplify right side
4,812,804.40x = 19,345,733,773,499.76 - Step 5: Solve for x
x = 19,345,733,773,499.76/4,812,804.40 - Step 6: Final answer
x = 4,019,638.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.