Finding the Fourth Proportional to 79,340,916.13, 118,957,042.73 and 40,403,997.33
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Solution
The fourth proportional to 79,340,916.13, 118,957,042.73 and 40,403,997.33 is: 60,578,327.94
Step by Step Solution
- Step 1: Write the proportion equation
79,340,916.13 : 118,957,042.73 = 40,403,997.33 : x - Step 2: Convert to fraction form
79,340,916.13/118,957,042.73 = 40,403,997.33/x - Step 3: Cross multiply
79,340,916.13x = 118,957,042.73 × 40,403,997.33 - Step 4: Simplify right side
79,340,916.13x = 4,806,340,036,252,831 - Step 5: Solve for x
x = 4,806,340,036,252,831/79,340,916.13 - Step 6: Final answer
x = 60,578,327.94
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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.