Finding the Fourth Proportional to 7,079,122.37, 9,769,938.02 and 4,327,420.75
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Solution
The fourth proportional to 7,079,122.37, 9,769,938.02 and 4,327,420.75 is: 5,972,298.58
Step by Step Solution
- Step 1: Write the proportion equation
7,079,122.37 : 9,769,938.02 = 4,327,420.75 : x - Step 2: Convert to fraction form
7,079,122.37/9,769,938.02 = 4,327,420.75/x - Step 3: Cross multiply
7,079,122.37x = 9,769,938.02 × 4,327,420.75 - Step 4: Simplify right side
7,079,122.37x = 42,278,632,484,127.80 - Step 5: Solve for x
x = 42,278,632,484,127.80/7,079,122.37 - Step 6: Final answer
x = 5,972,298.58
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.