Finding the Fourth Proportional to 7,389,845.76, 10,202,785.70 and 6,614,133.26
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Solution
The fourth proportional to 7,389,845.76, 10,202,785.70 and 6,614,133.26 is: 9,131,798.73
Step by Step Solution
- Step 1: Write the proportion equation
7,389,845.76 : 10,202,785.70 = 6,614,133.26 : x - Step 2: Convert to fraction form
7,389,845.76/10,202,785.70 = 6,614,133.26/x - Step 3: Cross multiply
7,389,845.76x = 10,202,785.70 × 6,614,133.26 - Step 4: Simplify right side
7,389,845.76x = 67,482,584,158,937.79 - Step 5: Solve for x
x = 67,482,584,158,937.79/7,389,845.76 - Step 6: Final answer
x = 9,131,798.73
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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.