Finding the Fourth Proportional to 5,639,425.56, 7,781,839.32 and 3,191,610.42
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Solution
The fourth proportional to 5,639,425.56, 7,781,839.32 and 3,191,610.42 is: 4,404,100.95
Step by Step Solution
- Step 1: Write the proportion equation
5,639,425.56 : 7,781,839.32 = 3,191,610.42 : x - Step 2: Convert to fraction form
5,639,425.56/7,781,839.32 = 3,191,610.42/x - Step 3: Cross multiply
5,639,425.56x = 7,781,839.32 × 3,191,610.42 - Step 4: Simplify right side
5,639,425.56x = 24,836,599,460,477.71 - Step 5: Solve for x
x = 24,836,599,460,477.71/5,639,425.56 - Step 6: Final answer
x = 4,404,100.95
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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.