Finding the Fourth Proportional to 5,739,629.76, 7,920,390.09 and 3,564,126.18
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Solution
The fourth proportional to 5,739,629.76, 7,920,390.09 and 3,564,126.18 is: 4,918,308.47
Step by Step Solution
- Step 1: Write the proportion equation
5,739,629.76 : 7,920,390.09 = 3,564,126.18 : x - Step 2: Convert to fraction form
5,739,629.76/7,920,390.09 = 3,564,126.18/x - Step 3: Cross multiply
5,739,629.76x = 7,920,390.09 × 3,564,126.18 - Step 4: Simplify right side
5,739,629.76x = 28,229,269,675,581.56 - Step 5: Solve for x
x = 28,229,269,675,581.56/5,739,629.76 - Step 6: Final answer
x = 4,918,308.47
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1.5x scale
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.