Finding the Fourth Proportional to 8,649,420.31, 11,936,449.20 and 4,782,191.14
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Solution
The fourth proportional to 8,649,420.31, 11,936,449.20 and 4,782,191.14 is: 6,599,561.54
Step by Step Solution
- Step 1: Write the proportion equation
8,649,420.31 : 11,936,449.20 = 4,782,191.14 : x - Step 2: Convert to fraction form
8,649,420.31/11,936,449.20 = 4,782,191.14/x - Step 3: Cross multiply
8,649,420.31x = 11,936,449.20 × 4,782,191.14 - Step 4: Simplify right side
8,649,420.31x = 57,082,381,607,300.08 - Step 5: Solve for x
x = 57,082,381,607,300.08/8,649,420.31 - Step 6: Final answer
x = 6,599,561.54
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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.