Finding the Fourth Proportional to 68,170,121.40, 94,077,088.77 and 40,316,708.10
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Solution
The fourth proportional to 68,170,121.40, 94,077,088.77 and 40,316,708.10 is: 55,638,429.99
Step by Step Solution
- Step 1: Write the proportion equation
68,170,121.40 : 94,077,088.77 = 40,316,708.10 : x - Step 2: Convert to fraction form
68,170,121.40/94,077,088.77 = 40,316,708.10/x - Step 3: Cross multiply
68,170,121.40x = 94,077,088.77 × 40,316,708.10 - Step 4: Simplify right side
68,170,121.40x = 3,792,878,526,837,878 - Step 5: Solve for x
x = 3,792,878,526,837,878/68,170,121.40 - Step 6: Final answer
x = 55,638,429.99
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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.