Finding the Fourth Proportional to 53,415,655.92, 73,690,201.26 and 31,379,214.27
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Solution
The fourth proportional to 53,415,655.92, 73,690,201.26 and 31,379,214.27 is: 43,289,566.98
Step by Step Solution
- Step 1: Write the proportion equation
53,415,655.92 : 73,690,201.26 = 31,379,214.27 : x - Step 2: Convert to fraction form
53,415,655.92/73,690,201.26 = 31,379,214.27/x - Step 3: Cross multiply
53,415,655.92x = 73,690,201.26 × 31,379,214.27 - Step 4: Simplify right side
53,415,655.92x = 2,312,340,614,936,964 - Step 5: Solve for x
x = 2,312,340,614,936,964/53,415,655.92 - Step 6: Final answer
x = 43,289,566.98
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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.