Finding the Fourth Proportional to 209,302,688.74, 313,982,764.09 and 71,091,191.11
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Solution
The fourth proportional to 209,302,688.74, 313,982,764.09 and 71,091,191.11 is: 106,646,545.34
Step by Step Solution
- Step 1: Write the proportion equation
209,302,688.74 : 313,982,764.09 = 71,091,191.11 : x - Step 2: Convert to fraction form
209,302,688.74/313,982,764.09 = 71,091,191.11/x - Step 3: Cross multiply
209,302,688.74x = 313,982,764.09 × 71,091,191.11 - Step 4: Simplify right side
209,302,688.74x = 22,321,408,685,242,864 - Step 5: Solve for x
x = 22,321,408,685,242,864/209,302,688.74 - Step 6: Final answer
x = 106,646,545.34
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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.