Finding the Fourth Proportional to 9,515,858.19, 13,131,532.47 and 5,164,851.75
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Solution
The fourth proportional to 9,515,858.19, 13,131,532.47 and 5,164,851.75 is: 7,127,304.45
Step by Step Solution
- Step 1: Write the proportion equation
9,515,858.19 : 13,131,532.47 = 5,164,851.75 : x - Step 2: Convert to fraction form
9,515,858.19/13,131,532.47 = 5,164,851.75/x - Step 3: Cross multiply
9,515,858.19x = 13,131,532.47 × 5,164,851.75 - Step 4: Simplify right side
9,515,858.19x = 67,822,418,457,861.33 - Step 5: Solve for x
x = 67,822,418,457,861.33/9,515,858.19 - Step 6: Final answer
x = 7,127,304.45
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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.