Finding the Fourth Proportional to 117,089,904.18, 161,583,907.78 and 64,882,319.70
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Solution
The fourth proportional to 117,089,904.18, 161,583,907.78 and 64,882,319.70 is: 89,537,512.53
Step by Step Solution
- Step 1: Write the proportion equation
117,089,904.18 : 161,583,907.78 = 64,882,319.70 : x - Step 2: Convert to fraction form
117,089,904.18/161,583,907.78 = 64,882,319.70/x - Step 3: Cross multiply
117,089,904.18x = 161,583,907.78 × 64,882,319.70 - Step 4: Simplify right side
117,089,904.18x = 10,483,938,762,957,278 - Step 5: Solve for x
x = 10,483,938,762,957,278/117,089,904.18 - Step 6: Final answer
x = 89,537,512.53
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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.