Finding the Fourth Proportional to 71,355,251.43, 98,467,615.58 and 38,759,503.59
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Solution
The fourth proportional to 71,355,251.43, 98,467,615.58 and 38,759,503.59 is: 53,486,685.60
Step by Step Solution
- Step 1: Write the proportion equation
71,355,251.43 : 98,467,615.58 = 38,759,503.59 : x - Step 2: Convert to fraction form
71,355,251.43/98,467,615.58 = 38,759,503.59/x - Step 3: Cross multiply
71,355,251.43x = 98,467,615.58 × 38,759,503.59 - Step 4: Simplify right side
71,355,251.43x = 3,816,555,899,377,953 - Step 5: Solve for x
x = 3,816,555,899,377,953/71,355,251.43 - Step 6: Final answer
x = 53,486,685.60
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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.