Finding the Fourth Proportional to 3,947,223.42, 5,445,128.09 and 2,497,759.62
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Solution
The fourth proportional to 3,947,223.42, 5,445,128.09 and 2,497,759.62 is: 3,445,617.24
Step by Step Solution
- Step 1: Write the proportion equation
3,947,223.42 : 5,445,128.09 = 2,497,759.62 : x - Step 2: Convert to fraction form
3,947,223.42/5,445,128.09 = 2,497,759.62/x - Step 3: Cross multiply
3,947,223.42x = 5,445,128.09 × 2,497,759.62 - Step 4: Simplify right side
3,947,223.42x = 13,600,621,056,440.93 - Step 5: Solve for x
x = 13,600,621,056,440.93/3,947,223.42 - Step 6: Final answer
x = 3,445,617.24
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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.