Finding the Fourth Proportional to 827,410,403.60, 1,241,115,605.40 and 815,317,168.40
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Solution
The fourth proportional to 827,410,403.60, 1,241,115,605.40 and 815,317,168.40 is: 1,222,975,752.60
Step by Step Solution
- Step 1: Write the proportion equation
827,410,403.60 : 1,241,115,605.40 = 815,317,168.40 : x - Step 2: Convert to fraction form
827,410,403.60/1,241,115,605.40 = 815,317,168.40/x - Step 3: Cross multiply
827,410,403.60x = 1,241,115,605.40 × 815,317,168.40 - Step 4: Simplify right side
827,410,403.60x = 1,011,902,861,051,779,840 - Step 5: Solve for x
x = 1,011,902,861,051,779,840/827,410,403.60 - Step 6: Final answer
x = 1,222,975,752.60
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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.