Finding the Fourth Proportional to 136,356,163.08, 188,172,079.70 and 76,818,173.53
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Solution
The fourth proportional to 136,356,163.08, 188,172,079.70 and 76,818,173.53 is: 106,009,403.21
Step by Step Solution
- Step 1: Write the proportion equation
136,356,163.08 : 188,172,079.70 = 76,818,173.53 : x - Step 2: Convert to fraction form
136,356,163.08/188,172,079.70 = 76,818,173.53/x - Step 3: Cross multiply
136,356,163.08x = 188,172,079.70 × 76,818,173.53 - Step 4: Simplify right side
136,356,163.08x = 14,455,035,471,826,380 - Step 5: Solve for x
x = 14,455,035,471,826,380/136,356,163.08 - Step 6: Final answer
x = 106,009,403.21
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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.