Finding the Fourth Proportional to 81,656,749.64, 112,685,974.67 and 44,486,914.21
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Solution
The fourth proportional to 81,656,749.64, 112,685,974.67 and 44,486,914.21 is: 61,391,756.46
Step by Step Solution
- Step 1: Write the proportion equation
81,656,749.64 : 112,685,974.67 = 44,486,914.21 : x - Step 2: Convert to fraction form
81,656,749.64/112,685,974.67 = 44,486,914.21/x - Step 3: Cross multiply
81,656,749.64x = 112,685,974.67 × 44,486,914.21 - Step 4: Simplify right side
81,656,749.64x = 5,013,051,287,644,026 - Step 5: Solve for x
x = 5,013,051,287,644,026/81,656,749.64 - Step 6: Final answer
x = 61,391,756.46
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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.