Finding the Fourth Proportional to 84,321,000.70, 126,481,501.05 and 69,972,093.70
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Solution
The fourth proportional to 84,321,000.70, 126,481,501.05 and 69,972,093.70 is: 104,958,140.55
Step by Step Solution
- Step 1: Write the proportion equation
84,321,000.70 : 126,481,501.05 = 69,972,093.70 : x - Step 2: Convert to fraction form
84,321,000.70/126,481,501.05 = 69,972,093.70/x - Step 3: Cross multiply
84,321,000.70x = 126,481,501.05 × 69,972,093.70 - Step 4: Simplify right side
84,321,000.70x = 8,850,175,442,787,249 - Step 5: Solve for x
x = 8,850,175,442,787,249/84,321,000.70 - Step 6: Final answer
x = 104,958,140.55
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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.