Finding the Fourth Proportional to 128,825,622.40, 193,089,134.40 and 52,110,716.80
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Solution
The fourth proportional to 128,825,622.40, 193,089,134.40 and 52,110,716.80 is: 78,105,682.80
Step by Step Solution
- Step 1: Write the proportion equation
128,825,622.40 : 193,089,134.40 = 52,110,716.80 : x - Step 2: Convert to fraction form
128,825,622.40/193,089,134.40 = 52,110,716.80/x - Step 3: Cross multiply
128,825,622.40x = 193,089,134.40 × 52,110,716.80 - Step 4: Simplify right side
128,825,622.40x = 10,062,013,199,875,538 - Step 5: Solve for x
x = 10,062,013,199,875,538/128,825,622.40 - Step 6: Final answer
x = 78,105,682.80
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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.