Finding the Fourth Proportional to 115,774,327.80, 173,661,491.70 and 58,378,699.80
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Solution
The fourth proportional to 115,774,327.80, 173,661,491.70 and 58,378,699.80 is: 87,568,049.70
Step by Step Solution
- Step 1: Write the proportion equation
115,774,327.80 : 173,661,491.70 = 58,378,699.80 : x - Step 2: Convert to fraction form
115,774,327.80/173,661,491.70 = 58,378,699.80/x - Step 3: Cross multiply
115,774,327.80x = 173,661,491.70 × 58,378,699.80 - Step 4: Simplify right side
115,774,327.80x = 10,138,132,090,774,490 - Step 5: Solve for x
x = 10,138,132,090,774,490/115,774,327.80 - Step 6: Final answer
x = 87,568,049.70
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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.