Finding the Fourth Proportional to 113,918,950.33, 157,208,906.27 and 61,707,985.99
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Solution
The fourth proportional to 113,918,950.33, 157,208,906.27 and 61,707,985.99 is: 85,157,429.54
Step by Step Solution
- Step 1: Write the proportion equation
113,918,950.33 : 157,208,906.27 = 61,707,985.99 : x - Step 2: Convert to fraction form
113,918,950.33/157,208,906.27 = 61,707,985.99/x - Step 3: Cross multiply
113,918,950.33x = 157,208,906.27 × 61,707,985.99 - Step 4: Simplify right side
113,918,950.33x = 9,701,044,985,373,630 - Step 5: Solve for x
x = 9,701,044,985,373,630/113,918,950.33 - Step 6: Final answer
x = 85,157,429.54
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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.