Finding the Fourth Proportional to 545,936,471.20, 818,904,706.80 and 239,826,455.20
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Solution
The fourth proportional to 545,936,471.20, 818,904,706.80 and 239,826,455.20 is: 359,739,682.80
Step by Step Solution
- Step 1: Write the proportion equation
545,936,471.20 : 818,904,706.80 = 239,826,455.20 : x - Step 2: Convert to fraction form
545,936,471.20/818,904,706.80 = 239,826,455.20/x - Step 3: Cross multiply
545,936,471.20x = 818,904,706.80 × 239,826,455.20 - Step 4: Simplify right side
545,936,471.20x = 196,395,012,978,439,328 - Step 5: Solve for x
x = 196,395,012,978,439,328/545,936,471.20 - Step 6: Final answer
x = 359,739,682.80
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Similar ratio
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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.