Finding the Fourth Proportional to 103,729,884.76, 143,147,292.02 and 57,320,138.68
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Solution
The fourth proportional to 103,729,884.76, 143,147,292.02 and 57,320,138.68 is: 79,101,819.59
Step by Step Solution
- Step 1: Write the proportion equation
103,729,884.76 : 143,147,292.02 = 57,320,138.68 : x - Step 2: Convert to fraction form
103,729,884.76/143,147,292.02 = 57,320,138.68/x - Step 3: Cross multiply
103,729,884.76x = 143,147,292.02 × 57,320,138.68 - Step 4: Simplify right side
103,729,884.76x = 8,205,222,630,628,543 - Step 5: Solve for x
x = 8,205,222,630,628,543/103,729,884.76 - Step 6: Final answer
x = 79,101,819.59
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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.