Finding the Fourth Proportional to 661,189,500.09, 991,927,739.21 and 201,115,711.98
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Solution
The fourth proportional to 661,189,500.09, 991,927,739.21 and 201,115,711.98 is: 301,717,213.41
Step by Step Solution
- Step 1: Write the proportion equation
661,189,500.09 : 991,927,739.21 = 201,115,711.98 : x - Step 2: Convert to fraction form
661,189,500.09/991,927,739.21 = 201,115,711.98/x - Step 3: Cross multiply
661,189,500.09x = 991,927,739.21 × 201,115,711.98 - Step 4: Simplify right side
661,189,500.09x = 199,492,253,502,925,344 - Step 5: Solve for x
x = 199,492,253,502,925,344/661,189,500.09 - Step 6: Final answer
x = 301,717,213.41
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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.