Finding the Fourth Proportional to 213,471,248.90, 294,590,575.48 and 115,686,104.90
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Solution
The fourth proportional to 213,471,248.90, 294,590,575.48 and 115,686,104.90 is: 159,646,961.32
Step by Step Solution
- Step 1: Write the proportion equation
213,471,248.90 : 294,590,575.48 = 115,686,104.90 : x - Step 2: Convert to fraction form
213,471,248.90/294,590,575.48 = 115,686,104.90/x - Step 3: Cross multiply
213,471,248.90x = 294,590,575.48 × 115,686,104.90 - Step 4: Simplify right side
213,471,248.90x = 34,080,036,215,768,480 - Step 5: Solve for x
x = 34,080,036,215,768,480/213,471,248.90 - Step 6: Final answer
x = 159,646,961.32
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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.