Finding the Fourth Proportional to 497,664,415.40, 746,496,623.10 and 255,351,813.80
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Solution
The fourth proportional to 497,664,415.40, 746,496,623.10 and 255,351,813.80 is: 383,027,720.70
Step by Step Solution
- Step 1: Write the proportion equation
497,664,415.40 : 746,496,623.10 = 255,351,813.80 : x - Step 2: Convert to fraction form
497,664,415.40/746,496,623.10 = 255,351,813.80/x - Step 3: Cross multiply
497,664,415.40x = 746,496,623.10 × 255,351,813.80 - Step 4: Simplify right side
497,664,415.40x = 190,619,266,704,160,000 - Step 5: Solve for x
x = 190,619,266,704,160,000/497,664,415.40 - Step 6: Final answer
x = 383,027,720.70
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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.