Finding the Fourth Proportional to 98,585,058.64, 135,334,965.38 and 84,622,172.97
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Solution
The fourth proportional to 98,585,058.64, 135,334,965.38 and 84,622,172.97 is: 116,167,084.63
Step by Step Solution
- Step 1: Write the proportion equation
98,585,058.64 : 135,334,965.38 = 84,622,172.97 : x - Step 2: Convert to fraction form
98,585,058.64/135,334,965.38 = 84,622,172.97/x - Step 3: Cross multiply
98,585,058.64x = 135,334,965.38 × 84,622,172.97 - Step 4: Simplify right side
98,585,058.64x = 11,452,338,849,371,906 - Step 5: Solve for x
x = 11,452,338,849,371,906/98,585,058.64 - Step 6: Final answer
x = 116,167,084.63
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.