Finding the Fourth Proportional to 117,089,786.84, 161,583,747.36 and 64,882,203.44
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Solution
The fourth proportional to 117,089,786.84, 161,583,747.36 and 64,882,203.44 is: 89,537,352.93
Step by Step Solution
- Step 1: Write the proportion equation
117,089,786.84 : 161,583,747.36 = 64,882,203.44 : x - Step 2: Convert to fraction form
117,089,786.84/161,583,747.36 = 64,882,203.44/x - Step 3: Cross multiply
117,089,786.84x = 161,583,747.36 × 64,882,203.44 - Step 4: Simplify right side
117,089,786.84x = 10,483,909,568,809,084 - Step 5: Solve for x
x = 10,483,909,568,809,084/117,089,786.84 - Step 6: Final answer
x = 89,537,352.93
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.