Finding the Fourth Proportional to 7,188,121.19, 9,919,567.75 and 3,924,912.75
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Solution
The fourth proportional to 7,188,121.19, 9,919,567.75 and 3,924,912.75 is: 5,416,358.03
Step by Step Solution
- Step 1: Write the proportion equation
7,188,121.19 : 9,919,567.75 = 3,924,912.75 : x - Step 2: Convert to fraction form
7,188,121.19/9,919,567.75 = 3,924,912.75/x - Step 3: Cross multiply
7,188,121.19x = 9,919,567.75 × 3,924,912.75 - Step 4: Simplify right side
7,188,121.19x = 38,933,437,896,812.37 - Step 5: Solve for x
x = 38,933,437,896,812.37/7,188,121.19 - Step 6: Final answer
x = 5,416,358.03
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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.