Finding the Fourth Proportional to 4,089,378.16, 5,642,564.61 and 2,457,189.99
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Solution
The fourth proportional to 4,089,378.16, 5,642,564.61 and 2,457,189.99 is: 3,390,455.16
Step by Step Solution
- Step 1: Write the proportion equation
4,089,378.16 : 5,642,564.61 = 2,457,189.99 : x - Step 2: Convert to fraction form
4,089,378.16/5,642,564.61 = 2,457,189.99/x - Step 3: Cross multiply
4,089,378.16x = 5,642,564.61 × 2,457,189.99 - Step 4: Simplify right side
4,089,378.16x = 13,864,853,265,675.10 - Step 5: Solve for x
x = 13,864,853,265,675.10/4,089,378.16 - Step 6: Final answer
x = 3,390,455.16
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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.