Finding the Fourth Proportional to 221,185,204.80, 331,777,807.20 and 205,060,891.20
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Solution
The fourth proportional to 221,185,204.80, 331,777,807.20 and 205,060,891.20 is: 307,591,336.80
Step by Step Solution
- Step 1: Write the proportion equation
221,185,204.80 : 331,777,807.20 = 205,060,891.20 : x - Step 2: Convert to fraction form
221,185,204.80/331,777,807.20 = 205,060,891.20/x - Step 3: Cross multiply
221,185,204.80x = 331,777,807.20 × 205,060,891.20 - Step 4: Simplify right side
221,185,204.80x = 68,034,652,824,813,768 - Step 5: Solve for x
x = 68,034,652,824,813,768/221,185,204.80 - Step 6: Final answer
x = 307,591,336.80
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1.5x scale
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.