Finding the Fourth Proportional to 89,036,971.52, 122,986,279.68 and 73,629,294.08
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Solution
The fourth proportional to 89,036,971.52, 122,986,279.68 and 73,629,294.08 is: 101,703,739.47
Step by Step Solution
- Step 1: Write the proportion equation
89,036,971.52 : 122,986,279.68 = 73,629,294.08 : x - Step 2: Convert to fraction form
89,036,971.52/122,986,279.68 = 73,629,294.08/x - Step 3: Cross multiply
89,036,971.52x = 122,986,279.68 × 73,629,294.08 - Step 4: Simplify right side
89,036,971.52x = 9,055,392,954,363,848 - Step 5: Solve for x
x = 9,055,392,954,363,848/89,036,971.52 - Step 6: Final answer
x = 101,703,739.47
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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.