Finding the Fourth Proportional to 630,193,990.73, 945,431,524.35 and 193,538,741.99
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Solution
The fourth proportional to 630,193,990.73, 945,431,524.35 and 193,538,741.99 is: 290,351,273.65
Step by Step Solution
- Step 1: Write the proportion equation
630,193,990.73 : 945,431,524.35 = 193,538,741.99 : x - Step 2: Convert to fraction form
630,193,990.73/945,431,524.35 = 193,538,741.99/x - Step 3: Cross multiply
630,193,990.73x = 945,431,524.35 × 193,538,741.99 - Step 4: Simplify right side
630,193,990.73x = 182,977,627,855,659,904 - Step 5: Solve for x
x = 182,977,627,855,659,904/630,193,990.73 - Step 6: Final answer
x = 290,351,273.65
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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.