Finding the Fourth Proportional to 7,765,983.42, 11,649,325.05 and 2,972,429.34
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Solution
The fourth proportional to 7,765,983.42, 11,649,325.05 and 2,972,429.34 is: 4,458,777.94
Step by Step Solution
- Step 1: Write the proportion equation
7,765,983.42 : 11,649,325.05 = 2,972,429.34 : x - Step 2: Convert to fraction form
7,765,983.42/11,649,325.05 = 2,972,429.34/x - Step 3: Cross multiply
7,765,983.42x = 11,649,325.05 × 2,972,429.34 - Step 4: Simplify right side
7,765,983.42x = 34,626,795,569,816.97 - Step 5: Solve for x
x = 34,626,795,569,816.97/7,765,983.42 - Step 6: Final answer
x = 4,458,777.94
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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.