Finding the Fourth Proportional to 36,403,778.09, 54,605,871.26 and 12,142,638.38
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Solution
The fourth proportional to 36,403,778.09, 54,605,871.26 and 12,142,638.38 is: 18,214,025.66
Step by Step Solution
- Step 1: Write the proportion equation
36,403,778.09 : 54,605,871.26 = 12,142,638.38 : x - Step 2: Convert to fraction form
36,403,778.09/54,605,871.26 = 12,142,638.38/x - Step 3: Cross multiply
36,403,778.09x = 54,605,871.26 × 12,142,638.38 - Step 4: Simplify right side
36,403,778.09x = 663,059,348,122,064.38 - Step 5: Solve for x
x = 663,059,348,122,064.38/36,403,778.09 - Step 6: Final answer
x = 18,214,025.66
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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.