Finding the Fourth Proportional to 869,163,108.30, 1,303,744,662.45 and 665,089,764.30
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Solution
The fourth proportional to 869,163,108.30, 1,303,744,662.45 and 665,089,764.30 is: 997,634,646.45
Step by Step Solution
- Step 1: Write the proportion equation
869,163,108.30 : 1,303,744,662.45 = 665,089,764.30 : x - Step 2: Convert to fraction form
869,163,108.30/1,303,744,662.45 = 665,089,764.30/x - Step 3: Cross multiply
869,163,108.30x = 1,303,744,662.45 × 665,089,764.30 - Step 4: Simplify right side
869,163,108.30x = 867,107,230,256,253,568 - Step 5: Solve for x
x = 867,107,230,256,253,568/869,163,108.30 - Step 6: Final answer
x = 997,634,646.45
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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.