Finding the Fourth Proportional to 128,825,690.40, 193,089,236.40 and 52,110,784.80
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Solution
The fourth proportional to 128,825,690.40, 193,089,236.40 and 52,110,784.80 is: 78,105,784.75
Step by Step Solution
- Step 1: Write the proportion equation
128,825,690.40 : 193,089,236.40 = 52,110,784.80 : x - Step 2: Convert to fraction form
128,825,690.40/193,089,236.40 = 52,110,784.80/x - Step 3: Cross multiply
128,825,690.40x = 193,089,236.40 × 52,110,784.80 - Step 4: Simplify right side
128,825,690.40x = 10,062,031,645,236,726 - Step 5: Solve for x
x = 10,062,031,645,236,726/128,825,690.40 - Step 6: Final answer
x = 78,105,784.75
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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.