Finding the Fourth Proportional to 122,353,682.39, 168,852,537.33 and 66,596,408.08
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Solution
The fourth proportional to 122,353,682.39, 168,852,537.33 and 66,596,408.08 is: 91,905,468.32
Step by Step Solution
- Step 1: Write the proportion equation
122,353,682.39 : 168,852,537.33 = 66,596,408.08 : x - Step 2: Convert to fraction form
122,353,682.39/168,852,537.33 = 66,596,408.08/x - Step 3: Cross multiply
122,353,682.39x = 168,852,537.33 × 66,596,408.08 - Step 4: Simplify right side
122,353,682.39x = 11,244,972,480,700,244 - Step 5: Solve for x
x = 11,244,972,480,700,244/122,353,682.39 - Step 6: Final answer
x = 91,905,468.32
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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.