Finding the Fourth Proportional to 5,430,171.44, 7,487,495.73 and 3,467,468.79
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Solution
The fourth proportional to 5,430,171.44, 7,487,495.73 and 3,467,468.79 is: 4,781,185.65
Step by Step Solution
- Step 1: Write the proportion equation
5,430,171.44 : 7,487,495.73 = 3,467,468.79 : x - Step 2: Convert to fraction form
5,430,171.44/7,487,495.73 = 3,467,468.79/x - Step 3: Cross multiply
5,430,171.44x = 7,487,495.73 × 3,467,468.79 - Step 4: Simplify right side
5,430,171.44x = 25,962,657,759,033.27 - Step 5: Solve for x
x = 25,962,657,759,033.27/5,430,171.44 - Step 6: Final answer
x = 4,781,185.65
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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.