Finding the Fourth Proportional to 139,888,525.46, 193,046,351.10 and 77,163,208.50
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Solution
The fourth proportional to 139,888,525.46, 193,046,351.10 and 77,163,208.50 is: 106,485,330.31
Step by Step Solution
- Step 1: Write the proportion equation
139,888,525.46 : 193,046,351.10 = 77,163,208.50 : x - Step 2: Convert to fraction form
139,888,525.46/193,046,351.10 = 77,163,208.50/x - Step 3: Cross multiply
139,888,525.46x = 193,046,351.10 × 77,163,208.50 - Step 4: Simplify right side
139,888,525.46x = 14,896,075,840,093,504 - Step 5: Solve for x
x = 14,896,075,840,093,504/139,888,525.46 - Step 6: Final answer
x = 106,485,330.31
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.