Finding the Fourth Proportional to 248,469,221.99, 342,902,867.16 and 136,959,811.30
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Solution
The fourth proportional to 248,469,221.99, 342,902,867.16 and 136,959,811.30 is: 189,012,995.67
Step by Step Solution
- Step 1: Write the proportion equation
248,469,221.99 : 342,902,867.16 = 136,959,811.30 : x - Step 2: Convert to fraction form
248,469,221.99/342,902,867.16 = 136,959,811.30/x - Step 3: Cross multiply
248,469,221.99x = 342,902,867.16 × 136,959,811.30 - Step 4: Simplify right side
248,469,221.99x = 46,963,911,981,789,904 - Step 5: Solve for x
x = 46,963,911,981,789,904/248,469,221.99 - Step 6: Final answer
x = 189,012,995.67
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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.