Finding the Fourth Proportional to 213,212,691.91, 294,248,740.47 and 117,841,148.97
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Solution
The fourth proportional to 213,212,691.91, 294,248,740.47 and 117,841,148.97 is: 162,629,200.68
Step by Step Solution
- Step 1: Write the proportion equation
213,212,691.91 : 294,248,740.47 = 117,841,148.97 : x - Step 2: Convert to fraction form
213,212,691.91/294,248,740.47 = 117,841,148.97/x - Step 3: Cross multiply
213,212,691.91x = 294,248,740.47 × 117,841,148.97 - Step 4: Simplify right side
213,212,691.91x = 34,674,609,659,960,140 - Step 5: Solve for x
x = 34,674,609,659,960,140/213,212,691.91 - Step 6: Final answer
x = 162,629,200.68
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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.