Finding the Fourth Proportional to 126,107,945.39, 173,874,352.63 and 103,702,632.71
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Solution
The fourth proportional to 126,107,945.39, 173,874,352.63 and 103,702,632.71 is: 142,982,490.71
Step by Step Solution
- Step 1: Write the proportion equation
126,107,945.39 : 173,874,352.63 = 103,702,632.71 : x - Step 2: Convert to fraction form
126,107,945.39/173,874,352.63 = 103,702,632.71/x - Step 3: Cross multiply
126,107,945.39x = 173,874,352.63 × 103,702,632.71 - Step 4: Simplify right side
126,107,945.39x = 18,031,228,129,042,228 - Step 5: Solve for x
x = 18,031,228,129,042,228/126,107,945.39 - Step 6: Final answer
x = 142,982,490.71
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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.