Finding the Fourth Proportional to 18,916,243.90, 28,378,351.66 and 6,135,752.20
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Solution
The fourth proportional to 18,916,243.90, 28,378,351.66 and 6,135,752.20 is: 9,204,921.15
Step by Step Solution
- Step 1: Write the proportion equation
18,916,243.90 : 28,378,351.66 = 6,135,752.20 : x - Step 2: Convert to fraction form
18,916,243.90/28,378,351.66 = 6,135,752.20/x - Step 3: Cross multiply
18,916,243.90x = 28,378,351.66 × 6,135,752.20 - Step 4: Simplify right side
18,916,243.90x = 174,122,533,630,218.66 - Step 5: Solve for x
x = 174,122,533,630,218.66/18,916,243.90 - Step 6: Final answer
x = 9,204,921.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.