Finding the Fourth Proportional to 98,185,581.27, 135,489,858.71 and 54,130,172.13
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Solution
The fourth proportional to 98,185,581.27, 135,489,858.71 and 54,130,172.13 is: 74,696,195.50
Step by Step Solution
- Step 1: Write the proportion equation
98,185,581.27 : 135,489,858.71 = 54,130,172.13 : x - Step 2: Convert to fraction form
98,185,581.27/135,489,858.71 = 54,130,172.13/x - Step 3: Cross multiply
98,185,581.27x = 135,489,858.71 × 54,130,172.13 - Step 4: Simplify right side
98,185,581.27x = 7,334,089,373,571,030 - Step 5: Solve for x
x = 7,334,089,373,571,030/98,185,581.27 - Step 6: Final answer
x = 74,696,195.50
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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.