Finding the Fourth Proportional to 1,347,946,543.10, 2,021,919,814.66 and 326,740,015.10
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Solution
The fourth proportional to 1,347,946,543.10, 2,021,919,814.66 and 326,740,015.10 is: 490,110,022.65
Step by Step Solution
- Step 1: Write the proportion equation
1,347,946,543.10 : 2,021,919,814.66 = 326,740,015.10 : x - Step 2: Convert to fraction form
1,347,946,543.10/2,021,919,814.66 = 326,740,015.10/x - Step 3: Cross multiply
1,347,946,543.10x = 2,021,919,814.66 × 326,740,015.10 - Step 4: Simplify right side
1,347,946,543.10x = 660,642,110,772,997,632 - Step 5: Solve for x
x = 660,642,110,772,997,632/1,347,946,543.10 - Step 6: Final answer
x = 490,110,022.65
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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.