Finding the Fourth Proportional to 3,615,323.12, 4,989,588.36 and 2,087,427.68
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Solution
The fourth proportional to 3,615,323.12, 4,989,588.36 and 2,087,427.68 is: 2,880,905.66
Step by Step Solution
- Step 1: Write the proportion equation
3,615,323.12 : 4,989,588.36 = 2,087,427.68 : x - Step 2: Convert to fraction form
3,615,323.12/4,989,588.36 = 2,087,427.68/x - Step 3: Cross multiply
3,615,323.12x = 4,989,588.36 × 2,087,427.68 - Step 4: Simplify right side
3,615,323.12x = 10,415,404,854,469.80 - Step 5: Solve for x
x = 10,415,404,854,469.80/3,615,323.12 - Step 6: Final answer
x = 2,880,905.66
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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.