Finding the Fourth Proportional to 76,801,889.12, 115,202,944.55 and 31,363,683.62
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Solution
The fourth proportional to 76,801,889.12, 115,202,944.55 and 31,363,683.62 is: 47,045,570.70
Step by Step Solution
- Step 1: Write the proportion equation
76,801,889.12 : 115,202,944.55 = 31,363,683.62 : x - Step 2: Convert to fraction form
76,801,889.12/115,202,944.55 = 31,363,683.62/x - Step 3: Cross multiply
76,801,889.12x = 115,202,944.55 × 31,363,683.62 - Step 4: Simplify right side
76,801,889.12x = 3,613,188,704,460,997.50 - Step 5: Solve for x
x = 3,613,188,704,460,997.50/76,801,889.12 - Step 6: Final answer
x = 47,045,570.70
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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.