Finding the Fourth Proportional to 200,063,958.72, 299,786,029.08 and 138,772,277.70
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Solution
The fourth proportional to 200,063,958.72, 299,786,029.08 and 138,772,277.70 is: 207,943,451.41
Step by Step Solution
- Step 1: Write the proportion equation
200,063,958.72 : 299,786,029.08 = 138,772,277.70 : x - Step 2: Convert to fraction form
200,063,958.72/299,786,029.08 = 138,772,277.70/x - Step 3: Cross multiply
200,063,958.72x = 299,786,029.08 × 138,772,277.70 - Step 4: Simplify right side
200,063,958.72x = 41,601,990,078,070,032 - Step 5: Solve for x
x = 41,601,990,078,070,032/200,063,958.72 - Step 6: Final answer
x = 207,943,451.41
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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.