Finding the Fourth Proportional to 5,747,720.56, 7,931,684.70 and 3,169,400.68
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Solution
The fourth proportional to 5,747,720.56, 7,931,684.70 and 3,169,400.68 is: 4,373,679.38
Step by Step Solution
- Step 1: Write the proportion equation
5,747,720.56 : 7,931,684.70 = 3,169,400.68 : x - Step 2: Convert to fraction form
5,747,720.56/7,931,684.70 = 3,169,400.68/x - Step 3: Cross multiply
5,747,720.56x = 7,931,684.70 × 3,169,400.68 - Step 4: Simplify right side
5,747,720.56x = 25,138,686,881,725.60 - Step 5: Solve for x
x = 25,138,686,881,725.60/5,747,720.56 - Step 6: Final answer
x = 4,373,679.38
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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.