Finding the Fourth Proportional to 5,430,905.01, 8,146,357.31 and 1,387,401.62
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Solution
The fourth proportional to 5,430,905.01, 8,146,357.31 and 1,387,401.62 is: 2,081,102.37
Step by Step Solution
- Step 1: Write the proportion equation
5,430,905.01 : 8,146,357.31 = 1,387,401.62 : x - Step 2: Convert to fraction form
5,430,905.01/8,146,357.31 = 1,387,401.62/x - Step 3: Cross multiply
5,430,905.01x = 8,146,357.31 × 1,387,401.62 - Step 4: Simplify right side
5,430,905.01x = 11,302,269,291,729.56 - Step 5: Solve for x
x = 11,302,269,291,729.56/5,430,905.01 - Step 6: Final answer
x = 2,081,102.37
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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.