Finding the Fourth Proportional to 107,769,421.05, 161,756,331.60 and 66,704,642.88
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Solution
The fourth proportional to 107,769,421.05, 161,756,331.60 and 66,704,642.88 is: 100,120,221.75
Step by Step Solution
- Step 1: Write the proportion equation
107,769,421.05 : 161,756,331.60 = 66,704,642.88 : x - Step 2: Convert to fraction form
107,769,421.05/161,756,331.60 = 66,704,642.88/x - Step 3: Cross multiply
107,769,421.05x = 161,756,331.60 × 66,704,642.88 - Step 4: Simplify right side
107,769,421.05x = 10,789,898,332,956,860 - Step 5: Solve for x
x = 10,789,898,332,956,860/107,769,421.05 - Step 6: Final answer
x = 100,120,221.75
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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.