Finding the Fourth Proportional to 139,968,512.10, 209,952,768.15 and 134,299,808.10
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Solution
The fourth proportional to 139,968,512.10, 209,952,768.15 and 134,299,808.10 is: 201,449,712.15
Step by Step Solution
- Step 1: Write the proportion equation
139,968,512.10 : 209,952,768.15 = 134,299,808.10 : x - Step 2: Convert to fraction form
139,968,512.10/209,952,768.15 = 134,299,808.10/x - Step 3: Cross multiply
139,968,512.10x = 209,952,768.15 × 134,299,808.10 - Step 4: Simplify right side
139,968,512.10x = 28,196,616,472,608,792 - Step 5: Solve for x
x = 28,196,616,472,608,792/139,968,512.10 - Step 6: Final answer
x = 201,449,712.15
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1.5x scale
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.