Finding the Fourth Proportional to 248,798,732.69, 343,349,548.10 and 135,775,522.21
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Solution
The fourth proportional to 248,798,732.69, 343,349,548.10 and 135,775,522.21 is: 187,374,202.79
Step by Step Solution
- Step 1: Write the proportion equation
248,798,732.69 : 343,349,548.10 = 135,775,522.21 : x - Step 2: Convert to fraction form
248,798,732.69/343,349,548.10 = 135,775,522.21/x - Step 3: Cross multiply
248,798,732.69x = 343,349,548.10 × 135,775,522.21 - Step 4: Simplify right side
248,798,732.69x = 46,618,464,193,845,016 - Step 5: Solve for x
x = 46,618,464,193,845,016/248,798,732.69 - Step 6: Final answer
x = 187,374,202.79
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.