Finding the Fourth Proportional to 126,115,989.93, 174,036,098.21 and 73,939,768.65
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Solution
The fourth proportional to 126,115,989.93, 174,036,098.21 and 73,939,768.65 is: 102,034,554.42
Step by Step Solution
- Step 1: Write the proportion equation
126,115,989.93 : 174,036,098.21 = 73,939,768.65 : x - Step 2: Convert to fraction form
126,115,989.93/174,036,098.21 = 73,939,768.65/x - Step 3: Cross multiply
126,115,989.93x = 174,036,098.21 × 73,939,768.65 - Step 4: Simplify right side
126,115,989.93x = 12,868,188,838,026,382 - Step 5: Solve for x
x = 12,868,188,838,026,382/126,115,989.93 - Step 6: Final answer
x = 102,034,554.42
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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.