Finding the Fourth Proportional to 7,380,099.87, 11,069,756.14 and 1,988,663.73
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Solution
The fourth proportional to 7,380,099.87, 11,069,756.14 and 1,988,663.73 is: 2,982,889.52
Step by Step Solution
- Step 1: Write the proportion equation
7,380,099.87 : 11,069,756.14 = 1,988,663.73 : x - Step 2: Convert to fraction form
7,380,099.87/11,069,756.14 = 1,988,663.73/x - Step 3: Cross multiply
7,380,099.87x = 11,069,756.14 × 1,988,663.73 - Step 4: Simplify right side
7,380,099.87x = 22,014,022,535,562.80 - Step 5: Solve for x
x = 22,014,022,535,562.80/7,380,099.87 - Step 6: Final answer
x = 2,982,889.52
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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.