Finding the Fourth Proportional to 139,968,138.30, 209,952,207.45 and 49,058,922.30
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Solution
The fourth proportional to 139,968,138.30, 209,952,207.45 and 49,058,922.30 is: 73,588,383.45
Step by Step Solution
- Step 1: Write the proportion equation
139,968,138.30 : 209,952,207.45 = 49,058,922.30 : x - Step 2: Convert to fraction form
139,968,138.30/209,952,207.45 = 49,058,922.30/x - Step 3: Cross multiply
139,968,138.30x = 209,952,207.45 × 49,058,922.30 - Step 4: Simplify right side
139,968,138.30x = 10,300,029,032,003,030 - Step 5: Solve for x
x = 10,300,029,032,003,030/139,968,138.30 - Step 6: Final answer
x = 73,588,383.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.