Finding the Fourth Proportional to 6,381,276.78, 8,806,189.66 and 3,480,729.96
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Solution
The fourth proportional to 6,381,276.78, 8,806,189.66 and 3,480,729.96 is: 4,803,422.46
Step by Step Solution
- Step 1: Write the proportion equation
6,381,276.78 : 8,806,189.66 = 3,480,729.96 : x - Step 2: Convert to fraction form
6,381,276.78/8,806,189.66 = 3,480,729.96/x - Step 3: Cross multiply
6,381,276.78x = 8,806,189.66 × 3,480,729.96 - Step 4: Simplify right side
6,381,276.78x = 30,651,968,183,004.21 - Step 5: Solve for x
x = 30,651,968,183,004.21/6,381,276.78 - Step 6: Final answer
x = 4,803,422.46
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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.