Finding the Fourth Proportional to 129,555,586.47, 178,786,717.79 and 70,818,484.26
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Solution
The fourth proportional to 129,555,586.47, 178,786,717.79 and 70,818,484.26 is: 97,729,512.90
Step by Step Solution
- Step 1: Write the proportion equation
129,555,586.47 : 178,786,717.79 = 70,818,484.26 : x - Step 2: Convert to fraction form
129,555,586.47/178,786,717.79 = 70,818,484.26/x - Step 3: Cross multiply
129,555,586.47x = 178,786,717.79 × 70,818,484.26 - Step 4: Simplify right side
129,555,586.47x = 12,661,404,359,354,086 - Step 5: Solve for x
x = 12,661,404,359,354,086/129,555,586.47 - Step 6: Final answer
x = 97,729,512.90
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.