Finding the Fourth Proportional to 157,934,595.36, 217,945,647.84 and 87,372,811.68
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Solution
The fourth proportional to 157,934,595.36, 217,945,647.84 and 87,372,811.68 is: 120,572,215.36
Step by Step Solution
- Step 1: Write the proportion equation
157,934,595.36 : 217,945,647.84 = 87,372,811.68 : x - Step 2: Convert to fraction form
157,934,595.36/217,945,647.84 = 87,372,811.68/x - Step 3: Cross multiply
157,934,595.36x = 217,945,647.84 × 87,372,811.68 - Step 4: Simplify right side
157,934,595.36x = 19,042,524,045,199,920 - Step 5: Solve for x
x = 19,042,524,045,199,920/157,934,595.36 - Step 6: Final answer
x = 120,572,215.36
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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.