Finding the Fourth Proportional to 83,133,050.70, 124,699,576.05 and 81,715,874.70
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Solution
The fourth proportional to 83,133,050.70, 124,699,576.05 and 81,715,874.70 is: 122,573,812.05
Step by Step Solution
- Step 1: Write the proportion equation
83,133,050.70 : 124,699,576.05 = 81,715,874.70 : x - Step 2: Convert to fraction form
83,133,050.70/124,699,576.05 = 81,715,874.70/x - Step 3: Cross multiply
83,133,050.70x = 124,699,576.05 × 81,715,874.70 - Step 4: Simplify right side
83,133,050.70x = 10,189,934,931,644,922 - Step 5: Solve for x
x = 10,189,934,931,644,922/83,133,050.70 - Step 6: Final answer
x = 122,573,812.05
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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.