Finding the Fourth Proportional to 7,430,905.70, 11,146,358.55 and 2,040,388.10
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Solution
The fourth proportional to 7,430,905.70, 11,146,358.55 and 2,040,388.10 is: 3,060,582.15
Step by Step Solution
- Step 1: Write the proportion equation
7,430,905.70 : 11,146,358.55 = 2,040,388.10 : x - Step 2: Convert to fraction form
7,430,905.70/11,146,358.55 = 2,040,388.10/x - Step 3: Cross multiply
7,430,905.70x = 11,146,358.55 × 2,040,388.10 - Step 4: Simplify right side
7,430,905.70x = 22,742,897,343,753.26 - Step 5: Solve for x
x = 22,742,897,343,753.26/7,430,905.70 - Step 6: Final answer
x = 3,060,582.15
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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.