Finding the Fourth Proportional to 122,435,721.48, 168,953,544.44 and 67,431,577.98
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Solution
The fourth proportional to 122,435,721.48, 168,953,544.44 and 67,431,577.98 is: 93,051,308.63
Step by Step Solution
- Step 1: Write the proportion equation
122,435,721.48 : 168,953,544.44 = 67,431,577.98 : x - Step 2: Convert to fraction form
122,435,721.48/168,953,544.44 = 67,431,577.98/x - Step 3: Cross multiply
122,435,721.48x = 168,953,544.44 × 67,431,577.98 - Step 4: Simplify right side
122,435,721.48x = 11,392,804,106,903,256 - Step 5: Solve for x
x = 11,392,804,106,903,256/122,435,721.48 - Step 6: Final answer
x = 93,051,308.63
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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.