Finding the Fourth Proportional to 5,289,918.58, 7,928,236.64 and 2,860,975.02
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Solution
The fourth proportional to 5,289,918.58, 7,928,236.64 and 2,860,975.02 is: 4,287,870.72
Step by Step Solution
- Step 1: Write the proportion equation
5,289,918.58 : 7,928,236.64 = 2,860,975.02 : x - Step 2: Convert to fraction form
5,289,918.58/7,928,236.64 = 2,860,975.02/x - Step 3: Cross multiply
5,289,918.58x = 7,928,236.64 × 2,860,975.02 - Step 4: Simplify right side
5,289,918.58x = 22,682,486,979,688.73 - Step 5: Solve for x
x = 22,682,486,979,688.73/5,289,918.58 - Step 6: Final answer
x = 4,287,870.72
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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.