Finding the Fourth Proportional to 231,502,055.36, 319,471,575.36 and 127,081,903.68
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Solution
The fourth proportional to 231,502,055.36, 319,471,575.36 and 127,081,903.68 is: 175,372,334.84
Step by Step Solution
- Step 1: Write the proportion equation
231,502,055.36 : 319,471,575.36 = 127,081,903.68 : x - Step 2: Convert to fraction form
231,502,055.36/319,471,575.36 = 127,081,903.68/x - Step 3: Cross multiply
231,502,055.36x = 319,471,575.36 × 127,081,903.68 - Step 4: Simplify right side
231,502,055.36x = 40,599,055,968,397,384 - Step 5: Solve for x
x = 40,599,055,968,397,384/231,502,055.36 - Step 6: Final answer
x = 175,372,334.84
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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.