Finding the Fourth Proportional to 138,567,425.10, 207,900,904.05 and 133,590,785.10
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Solution
The fourth proportional to 138,567,425.10, 207,900,904.05 and 133,590,785.10 is: 200,434,156.69
Step by Step Solution
- Step 1: Write the proportion equation
138,567,425.10 : 207,900,904.05 = 133,590,785.10 : x - Step 2: Convert to fraction form
138,567,425.10/207,900,904.05 = 133,590,785.10/x - Step 3: Cross multiply
138,567,425.10x = 207,900,904.05 × 133,590,785.10 - Step 4: Simplify right side
138,567,425.10x = 27,773,644,995,039,272 - Step 5: Solve for x
x = 27,773,644,995,039,272/138,567,425.10 - Step 6: Final answer
x = 200,434,156.69
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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.