Finding the Fourth Proportional to 409,451,692.80, 614,177,539.20 and 254,483,497.20
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Solution
The fourth proportional to 409,451,692.80, 614,177,539.20 and 254,483,497.20 is: 381,725,245.80
Step by Step Solution
- Step 1: Write the proportion equation
409,451,692.80 : 614,177,539.20 = 254,483,497.20 : x - Step 2: Convert to fraction form
409,451,692.80/614,177,539.20 = 254,483,497.20/x - Step 3: Cross multiply
409,451,692.80x = 614,177,539.20 × 254,483,497.20 - Step 4: Simplify right side
409,451,692.80x = 156,298,048,077,306,080 - Step 5: Solve for x
x = 156,298,048,077,306,080/409,451,692.80 - Step 6: Final answer
x = 381,725,245.80
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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.