Finding the Fourth Proportional to 83,751,109.06, 115,498,554.32 and 54,351,005.62
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Solution
The fourth proportional to 83,751,109.06, 115,498,554.32 and 54,351,005.62 is: 74,953,784.44
Step by Step Solution
- Step 1: Write the proportion equation
83,751,109.06 : 115,498,554.32 = 54,351,005.62 : x - Step 2: Convert to fraction form
83,751,109.06/115,498,554.32 = 54,351,005.62/x - Step 3: Cross multiply
83,751,109.06x = 115,498,554.32 × 54,351,005.62 - Step 4: Simplify right side
83,751,109.06x = 6,277,462,574,948,195 - Step 5: Solve for x
x = 6,277,462,574,948,195/83,751,109.06 - Step 6: Final answer
x = 74,953,784.44
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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.