Finding the Fourth Proportional to 5,132,541.76, 7,084,485.11 and 2,958,538.61
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Solution
The fourth proportional to 5,132,541.76, 7,084,485.11 and 2,958,538.61 is: 4,083,692.59
Step by Step Solution
- Step 1: Write the proportion equation
5,132,541.76 : 7,084,485.11 = 2,958,538.61 : x - Step 2: Convert to fraction form
5,132,541.76/7,084,485.11 = 2,958,538.61/x - Step 3: Cross multiply
5,132,541.76x = 7,084,485.11 × 2,958,538.61 - Step 4: Simplify right side
5,132,541.76x = 20,959,722,729,905.10 - Step 5: Solve for x
x = 20,959,722,729,905.10/5,132,541.76 - Step 6: Final answer
x = 4,083,692.59
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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.