Finding the Fourth Proportional to 138,232,564.10, 207,348,846.16 and 83,990,152.70
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Solution
The fourth proportional to 138,232,564.10, 207,348,846.16 and 83,990,152.70 is: 125,985,229.06
Step by Step Solution
- Step 1: Write the proportion equation
138,232,564.10 : 207,348,846.16 = 83,990,152.70 : x - Step 2: Convert to fraction form
138,232,564.10/207,348,846.16 = 83,990,152.70/x - Step 3: Cross multiply
138,232,564.10x = 207,348,846.16 × 83,990,152.70 - Step 4: Simplify right side
138,232,564.10x = 17,415,261,251,147,208 - Step 5: Solve for x
x = 17,415,261,251,147,208/138,232,564.10 - Step 6: Final answer
x = 125,985,229.06
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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.