Finding the Fourth Proportional to 71,131,820.68, 98,162,015.70 and 38,536,772.68
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Solution
The fourth proportional to 71,131,820.68, 98,162,015.70 and 38,536,772.68 is: 53,180,802.19
Step by Step Solution
- Step 1: Write the proportion equation
71,131,820.68 : 98,162,015.70 = 38,536,772.68 : x - Step 2: Convert to fraction form
71,131,820.68/98,162,015.70 = 38,536,772.68/x - Step 3: Cross multiply
71,131,820.68x = 98,162,015.70 × 38,536,772.68 - Step 4: Simplify right side
71,131,820.68x = 3,782,847,284,841,491 - Step 5: Solve for x
x = 3,782,847,284,841,491/71,131,820.68 - Step 6: Final answer
x = 53,180,802.19
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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.