Finding the Fourth Proportional to 14,217,542.51, 19,620,149.21 and 7,691,155.73
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Solution
The fourth proportional to 14,217,542.51, 19,620,149.21 and 7,691,155.73 is: 10,613,762.74
Step by Step Solution
- Step 1: Write the proportion equation
14,217,542.51 : 19,620,149.21 = 7,691,155.73 : x - Step 2: Convert to fraction form
14,217,542.51/19,620,149.21 = 7,691,155.73/x - Step 3: Cross multiply
14,217,542.51x = 19,620,149.21 × 7,691,155.73 - Step 4: Simplify right side
14,217,542.51x = 150,901,622,883,389.94 - Step 5: Solve for x
x = 150,901,622,883,389.94/14,217,542.51 - Step 6: Final answer
x = 10,613,762.74
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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.