Finding the Fourth Proportional to 76,801,892.49, 115,202,949.62 and 31,363,686.99
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Solution
The fourth proportional to 76,801,892.49, 115,202,949.62 and 31,363,686.99 is: 47,045,575.77
Step by Step Solution
- Step 1: Write the proportion equation
76,801,892.49 : 115,202,949.62 = 31,363,686.99 : x - Step 2: Convert to fraction form
76,801,892.49/115,202,949.62 = 31,363,686.99/x - Step 3: Cross multiply
76,801,892.49x = 115,202,949.62 × 31,363,686.99 - Step 4: Simplify right side
76,801,892.49x = 3,613,189,252,049,600.50 - Step 5: Solve for x
x = 3,613,189,252,049,600.50/76,801,892.49 - Step 6: Final answer
x = 47,045,575.77
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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.