Finding the Fourth Proportional to 100,093,512.60, 149,951,312.10 and 51,405,643.80
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Solution
The fourth proportional to 100,093,512.60, 149,951,312.10 and 51,405,643.80 is: 77,011,421.99
Step by Step Solution
- Step 1: Write the proportion equation
100,093,512.60 : 149,951,312.10 = 51,405,643.80 : x - Step 2: Convert to fraction form
100,093,512.60/149,951,312.10 = 51,405,643.80/x - Step 3: Cross multiply
100,093,512.60x = 149,951,312.10 × 51,405,643.80 - Step 4: Simplify right side
100,093,512.60x = 7,708,343,737,155,229 - Step 5: Solve for x
x = 7,708,343,737,155,229/100,093,512.60 - Step 6: Final answer
x = 77,011,421.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.