Finding the Fourth Proportional to 16,263,683.36, 22,443,917.76 and 8,921,576.88
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Solution
The fourth proportional to 16,263,683.36, 22,443,917.76 and 8,921,576.88 is: 12,311,795.14
Step by Step Solution
- Step 1: Write the proportion equation
16,263,683.36 : 22,443,917.76 = 8,921,576.88 : x - Step 2: Convert to fraction form
16,263,683.36/22,443,917.76 = 8,921,576.88/x - Step 3: Cross multiply
16,263,683.36x = 22,443,917.76 × 8,921,576.88 - Step 4: Simplify right side
16,263,683.36x = 200,235,137,784,237.41 - Step 5: Solve for x
x = 200,235,137,784,237.41/16,263,683.36 - Step 6: Final answer
x = 12,311,795.14
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1.5x scale
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.