Finding the Fourth Proportional to 31,121,379.60, 46,650,576.60 and 18,335,302.80
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Solution
The fourth proportional to 31,121,379.60, 46,650,576.60 and 18,335,302.80 is: 27,484,400.07
Step by Step Solution
- Step 1: Write the proportion equation
31,121,379.60 : 46,650,576.60 = 18,335,302.80 : x - Step 2: Convert to fraction form
31,121,379.60/46,650,576.60 = 18,335,302.80/x - Step 3: Cross multiply
31,121,379.60x = 46,650,576.60 × 18,335,302.80 - Step 4: Simplify right side
31,121,379.60x = 855,352,447,755,594.50 - Step 5: Solve for x
x = 855,352,447,755,594.50/31,121,379.60 - Step 6: Final answer
x = 27,484,400.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.