Finding the Fourth Proportional to 355,672,189.49, 531,346,675.50 and 230,152,260.74
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Solution
The fourth proportional to 355,672,189.49, 531,346,675.50 and 230,152,260.74 is: 343,829,633.62
Step by Step Solution
- Step 1: Write the proportion equation
355,672,189.49 : 531,346,675.50 = 230,152,260.74 : x - Step 2: Convert to fraction form
355,672,189.49/531,346,675.50 = 230,152,260.74/x - Step 3: Cross multiply
355,672,189.49x = 531,346,675.50 × 230,152,260.74 - Step 4: Simplify right side
355,672,189.49x = 122,290,638,600,351,440 - Step 5: Solve for x
x = 122,290,638,600,351,440/355,672,189.49 - Step 6: Final answer
x = 343,829,633.62
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.