Finding the Fourth Proportional to 128,775,419.44, 193,242,580.84 and 59,675,343.16
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Solution
The fourth proportional to 128,775,419.44, 193,242,580.84 and 59,675,343.16 is: 89,549,833.15
Step by Step Solution
- Step 1: Write the proportion equation
128,775,419.44 : 193,242,580.84 = 59,675,343.16 : x - Step 2: Convert to fraction form
128,775,419.44/193,242,580.84 = 59,675,343.16/x - Step 3: Cross multiply
128,775,419.44x = 193,242,580.84 × 59,675,343.16 - Step 4: Simplify right side
128,775,419.44x = 11,531,817,324,751,040 - Step 5: Solve for x
x = 11,531,817,324,751,040/128,775,419.44 - Step 6: Final answer
x = 89,549,833.15
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.