Finding the Fourth Proportional to 664,577,116.60, 996,865,674.90 and 377,922,652.60
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Solution
The fourth proportional to 664,577,116.60, 996,865,674.90 and 377,922,652.60 is: 566,883,978.90
Step by Step Solution
- Step 1: Write the proportion equation
664,577,116.60 : 996,865,674.90 = 377,922,652.60 : x - Step 2: Convert to fraction form
664,577,116.60/996,865,674.90 = 377,922,652.60/x - Step 3: Cross multiply
664,577,116.60x = 996,865,674.90 × 377,922,652.60 - Step 4: Simplify right side
664,577,116.60x = 376,738,120,144,097,280 - Step 5: Solve for x
x = 376,738,120,144,097,280/664,577,116.60 - Step 6: Final answer
x = 566,883,978.90
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Double scale
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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.