Finding the Fourth Proportional to 72,244,852.23, 99,697,961.26 and 39,205,101.68
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Solution
The fourth proportional to 72,244,852.23, 99,697,961.26 and 39,205,101.68 is: 54,103,075.69
Step by Step Solution
- Step 1: Write the proportion equation
72,244,852.23 : 99,697,961.26 = 39,205,101.68 : x - Step 2: Convert to fraction form
72,244,852.23/99,697,961.26 = 39,205,101.68/x - Step 3: Cross multiply
72,244,852.23x = 99,697,961.26 × 39,205,101.68 - Step 4: Simplify right side
72,244,852.23x = 3,908,668,707,792,485 - Step 5: Solve for x
x = 3,908,668,707,792,485/72,244,852.23 - Step 6: Final answer
x = 54,103,075.69
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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.