Finding the Fourth Proportional to 138,444,276.16, 207,519,970.56 and 52,145,344
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Solution
The fourth proportional to 138,444,276.16, 207,519,970.56 and 52,145,344 is: 78,162,857.66
Step by Step Solution
- Step 1: Write the proportion equation
138,444,276.16 : 207,519,970.56 = 52,145,344 : x - Step 2: Convert to fraction form
138,444,276.16/207,519,970.56 = 52,145,344/x - Step 3: Cross multiply
138,444,276.16x = 207,519,970.56 × 52,145,344 - Step 4: Simplify right side
138,444,276.16x = 10,821,200,251,721,072 - Step 5: Solve for x
x = 10,821,200,251,721,072/138,444,276.16 - Step 6: Final answer
x = 78,162,857.66
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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.