Finding the Fourth Proportional to 139,888,524.96, 193,046,350.41 and 77,163,208.00
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Solution
The fourth proportional to 139,888,524.96, 193,046,350.41 and 77,163,208.00 is: 106,485,329.62
Step by Step Solution
- Step 1: Write the proportion equation
139,888,524.96 : 193,046,350.41 = 77,163,208.00 : x - Step 2: Convert to fraction form
139,888,524.96/193,046,350.41 = 77,163,208.00/x - Step 3: Cross multiply
139,888,524.96x = 193,046,350.41 × 77,163,208.00 - Step 4: Simplify right side
139,888,524.96x = 14,896,075,689,845,100 - Step 5: Solve for x
x = 14,896,075,689,845,100/139,888,524.96 - Step 6: Final answer
x = 106,485,329.62
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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.