Finding the Fourth Proportional to 71,085,769.56, 98,069,149.44 and 43,203,987.09
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Solution
The fourth proportional to 71,085,769.56, 98,069,149.44 and 43,203,987.09 is: 59,603,747.59
Step by Step Solution
- Step 1: Write the proportion equation
71,085,769.56 : 98,069,149.44 = 43,203,987.09 : x - Step 2: Convert to fraction form
71,085,769.56/98,069,149.44 = 43,203,987.09/x - Step 3: Cross multiply
71,085,769.56x = 98,069,149.44 × 43,203,987.09 - Step 4: Simplify right side
71,085,769.56x = 4,236,978,266,333,041 - Step 5: Solve for x
x = 4,236,978,266,333,041/71,085,769.56 - Step 6: Final answer
x = 59,603,747.59
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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.