Finding the Fourth Proportional to 324,945,128.72, 487,399,751.84 and 237,596,157.36
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Solution
The fourth proportional to 324,945,128.72, 487,399,751.84 and 237,596,157.36 is: 356,381,117.61
Step by Step Solution
- Step 1: Write the proportion equation
324,945,128.72 : 487,399,751.84 = 237,596,157.36 : x - Step 2: Convert to fraction form
324,945,128.72/487,399,751.84 = 237,596,157.36/x - Step 3: Cross multiply
324,945,128.72x = 487,399,751.84 × 237,596,157.36 - Step 4: Simplify right side
324,945,128.72x = 115,804,308,135,401,584 - Step 5: Solve for x
x = 115,804,308,135,401,584/324,945,128.72 - Step 6: Final answer
x = 356,381,117.61
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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.