Finding the Fourth Proportional to 216,364,905.05, 324,549,850.74 and 78,201,005.09
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Solution
The fourth proportional to 216,364,905.05, 324,549,850.74 and 78,201,005.09 is: 117,302,408.74
Step by Step Solution
- Step 1: Write the proportion equation
216,364,905.05 : 324,549,850.74 = 78,201,005.09 : x - Step 2: Convert to fraction form
216,364,905.05/324,549,850.74 = 78,201,005.09/x - Step 3: Cross multiply
216,364,905.05x = 324,549,850.74 × 78,201,005.09 - Step 4: Simplify right side
216,364,905.05x = 25,380,124,530,488,856 - Step 5: Solve for x
x = 25,380,124,530,488,856/216,364,905.05 - Step 6: Final answer
x = 117,302,408.74
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.