Finding the Fourth Proportional to 68,170,131.90, 94,077,103.26 and 40,316,718.60
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Solution
The fourth proportional to 68,170,131.90, 94,077,103.26 and 40,316,718.60 is: 55,638,444.48
Step by Step Solution
- Step 1: Write the proportion equation
68,170,131.90 : 94,077,103.26 = 40,316,718.60 : x - Step 2: Convert to fraction form
68,170,131.90/94,077,103.26 = 40,316,718.60/x - Step 3: Cross multiply
68,170,131.90x = 94,077,103.26 × 40,316,718.60 - Step 4: Simplify right side
68,170,131.90x = 3,792,880,098,836,563 - Step 5: Solve for x
x = 3,792,880,098,836,563/68,170,131.90 - Step 6: Final answer
x = 55,638,444.48
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1.5x scale
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.