Finding the Fourth Proportional to 485,110,414.70, 727,665,622.05 and 370,319,158.70
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Solution
The fourth proportional to 485,110,414.70, 727,665,622.05 and 370,319,158.70 is: 555,478,738.05
Step by Step Solution
- Step 1: Write the proportion equation
485,110,414.70 : 727,665,622.05 = 370,319,158.70 : x - Step 2: Convert to fraction form
485,110,414.70/727,665,622.05 = 370,319,158.70/x - Step 3: Cross multiply
485,110,414.70x = 727,665,622.05 × 370,319,158.70 - Step 4: Simplify right side
485,110,414.70x = 269,468,520,972,468,128 - Step 5: Solve for x
x = 269,468,520,972,468,128/485,110,414.70 - Step 6: Final answer
x = 555,478,738.05
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.