Finding the Fourth Proportional to 126,878,664.78, 175,101,221.07 and 71,874,973.26
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Solution
The fourth proportional to 126,878,664.78, 175,101,221.07 and 71,874,973.26 is: 99,192,370.95
Step by Step Solution
- Step 1: Write the proportion equation
126,878,664.78 : 175,101,221.07 = 71,874,973.26 : x - Step 2: Convert to fraction form
126,878,664.78/175,101,221.07 = 71,874,973.26/x - Step 3: Cross multiply
126,878,664.78x = 175,101,221.07 × 71,874,973.26 - Step 4: Simplify right side
126,878,664.78x = 12,585,395,582,199,600 - Step 5: Solve for x
x = 12,585,395,582,199,600/126,878,664.78 - Step 6: Final answer
x = 99,192,370.95
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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.