Finding the Fourth Proportional to 72,462,319.92, 99,998,436.36 and 39,422,806.06
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Solution
The fourth proportional to 72,462,319.92, 99,998,436.36 and 39,422,806.06 is: 54,403,708.95
Step by Step Solution
- Step 1: Write the proportion equation
72,462,319.92 : 99,998,436.36 = 39,422,806.06 : x - Step 2: Convert to fraction form
72,462,319.92/99,998,436.36 = 39,422,806.06/x - Step 3: Cross multiply
72,462,319.92x = 99,998,436.36 × 39,422,806.06 - Step 4: Simplify right side
72,462,319.92x = 3,942,218,962,923,532.50 - Step 5: Solve for x
x = 3,942,218,962,923,532.50/72,462,319.92 - Step 6: Final answer
x = 54,403,708.95
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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.