Finding the Fourth Proportional to 216,438,587.96, 298,677,249.51 and 117,317,207.23
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Solution
The fourth proportional to 216,438,587.96, 298,677,249.51 and 117,317,207.23 is: 161,893,408.69
Step by Step Solution
- Step 1: Write the proportion equation
216,438,587.96 : 298,677,249.51 = 117,317,207.23 : x - Step 2: Convert to fraction form
216,438,587.96/298,677,249.51 = 117,317,207.23/x - Step 3: Cross multiply
216,438,587.96x = 298,677,249.51 × 117,317,207.23 - Step 4: Simplify right side
216,438,587.96x = 35,039,980,776,971,916 - Step 5: Solve for x
x = 35,039,980,776,971,916/216,438,587.96 - Step 6: Final answer
x = 161,893,408.69
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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.