Finding the Fourth Proportional to 122,807,399.74, 169,413,030.14 and 73,212,827.48
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Solution
The fourth proportional to 122,807,399.74, 169,413,030.14 and 73,212,827.48 is: 100,997,227.97
Step by Step Solution
- Step 1: Write the proportion equation
122,807,399.74 : 169,413,030.14 = 73,212,827.48 : x - Step 2: Convert to fraction form
122,807,399.74/169,413,030.14 = 73,212,827.48/x - Step 3: Cross multiply
122,807,399.74x = 169,413,030.14 × 73,212,827.48 - Step 4: Simplify right side
122,807,399.74x = 12,403,206,948,503,860 - Step 5: Solve for x
x = 12,403,206,948,503,860/122,807,399.74 - Step 6: Final answer
x = 100,997,227.97
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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.