Finding the Fourth Proportional to 6,415,197.88, 9,624,231.60 and 2,155,249.12
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Solution
The fourth proportional to 6,415,197.88, 9,624,231.60 and 2,155,249.12 is: 3,233,355.71
Step by Step Solution
- Step 1: Write the proportion equation
6,415,197.88 : 9,624,231.60 = 2,155,249.12 : x - Step 2: Convert to fraction form
6,415,197.88/9,624,231.60 = 2,155,249.12/x - Step 3: Cross multiply
6,415,197.88x = 9,624,231.60 × 2,155,249.12 - Step 4: Simplify right side
6,415,197.88x = 20,742,616,686,576.19 - Step 5: Solve for x
x = 20,742,616,686,576.19/6,415,197.88 - Step 6: Final answer
x = 3,233,355.71
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1.5x scale
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.