Finding the Fourth Proportional to 673,980,998.10, 1,010,971,497.15 and 551,536,991.70
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Solution
The fourth proportional to 673,980,998.10, 1,010,971,497.15 and 551,536,991.70 is: 827,305,487.55
Step by Step Solution
- Step 1: Write the proportion equation
673,980,998.10 : 1,010,971,497.15 = 551,536,991.70 : x - Step 2: Convert to fraction form
673,980,998.10/1,010,971,497.15 = 551,536,991.70/x - Step 3: Cross multiply
673,980,998.10x = 1,010,971,497.15 × 551,536,991.70 - Step 4: Simplify right side
673,980,998.10x = 557,588,178,232,556,160 - Step 5: Solve for x
x = 557,588,178,232,556,160/673,980,998.10 - Step 6: Final answer
x = 827,305,487.55
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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.