Finding the Fourth Proportional to 505,506,115.80, 758,259,173.70 and 505,506,115.80
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Solution
The fourth proportional to 505,506,115.80, 758,259,173.70 and 505,506,115.80 is: 758,259,173.70
Step by Step Solution
- Step 1: Write the proportion equation
505,506,115.80 : 758,259,173.70 = 505,506,115.80 : x - Step 2: Convert to fraction form
505,506,115.80/758,259,173.70 = 505,506,115.80/x - Step 3: Cross multiply
505,506,115.80x = 758,259,173.70 × 505,506,115.80 - Step 4: Simplify right side
505,506,115.80x = 383,304,649,666,804,544 - Step 5: Solve for x
x = 383,304,649,666,804,544/505,506,115.80 - Step 6: Final answer
x = 758,259,173.70
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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.