Finding the Fourth Proportional to 521,670,664.20, 782,600,474.70 and 262,232,977.80
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Solution
The fourth proportional to 521,670,664.20, 782,600,474.70 and 262,232,977.80 is: 393,396,959.02
Step by Step Solution
- Step 1: Write the proportion equation
521,670,664.20 : 782,600,474.70 = 262,232,977.80 : x - Step 2: Convert to fraction form
521,670,664.20/782,600,474.70 = 262,232,977.80/x - Step 3: Cross multiply
521,670,664.20x = 782,600,474.70 × 262,232,977.80 - Step 4: Simplify right side
521,670,664.20x = 205,223,652,908,274,592 - Step 5: Solve for x
x = 205,223,652,908,274,592/521,670,664.20 - Step 6: Final answer
x = 393,396,959.02
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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.